1978 Mercury Zephyr Drivetrains

Below you will find various in-demand Mercury Drivetrains, components and accessories for your 1978 Zephyr. Advance Auto Parts has popular Zephyr parts like Universal Joints, Transfer Cases, Differentials and more. You’ll also find aftermarket and OEM Drivetrains for other Zephyr model years including 1979, 1980, 1981, 1982, 1983 and more. Select a category of 1978 Mercury Zephyr Drivetrains below and start saving instantly.

Popular 1978 Mercury Zephyr Drivetrains Categories

Differential Oil

Axle Shaft Universal Joints

Drive Shaft Support Bolts

U-Joints

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Axle Shafts

Bearing Pullers

Drive Shaft Bearings

Axle Shaft Seals

Differential Pinion Pilot Bearings

Axle Shaft Bearings

Differential Carriers

Differential Bearing Kits

Input Shaft Bearings

Front Differential Pinion Bearings

Differential Spider Gear Kits

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Clutch Packs

Rear Axle Shaft Bearings

Differential Ring and Pinions

Differential End Yokes

Spindle Lock Nuts

Differential Lock Springs

Rear Housing Cover Gaskets

Transfer Case Output Shaft Bearings

Differential Pinion Bearing Kits

Drive Shaft Seals

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Spindle Lock Nut Thrust Washers

Spindle Retainers

Differential Crush Sleeves

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Gear Install Kits

Differential Cross Pins

Differential Housing O-Rings

Differential Side Gear Thrust Washers

Differential Pilot Bearing

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Gear Bearing Retainer Bolts

Auxiliary Shaft Bearings

Spindle Washers

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Essential Drivetrains for 1978 Mercury Zephyrs

from

$6.99

Pinion support bolt for 8″ and 9″ Ford.

Product Features:

Pinion support bolt for Ford 8″ and 9″
3/8″ x 24 thread
1.0″ long

from

$689.99

The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to most standard one ton applications. This unit is works with differentials up to one-ton applcations. It is not compatible with Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

Product Features:

Carrier bearing puller
Works with an impact gun to safely and easliy remove carrrier bearings
Not compatible with Dana 70HD, Dana 80, Ford 10.25″ and 10.5″ or Gm and Chrysler 11.5″ applications

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$36.99

Un-notched cross pin shaft for 7.5″ Ford. OEM, not Auburn gear.

Product Features:

Cross pin shaft for Ford 7.5″
3.45 and down ratios only

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$289.99

Good used Yukon yoke for Ford 8″ with a 1310 U/joint size. 3.219″ snap ring span, 1.062″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

Fits Ford 8″
25 spline
1310 u-joint size
Outside snap ring design
3.219″ snap ring span
1.062″ cap diameter
U-bolt style

from

$148.99

Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

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$883.99

The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to one ton applications including Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

Product Features:

Carrier bearing puller
Works with an impact gun to safely and easliy remove carrrier bearings

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$37.99

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

from

$6.99

This spindle nut retainer is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this spindle nut retainer matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this retainer is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$13.99

Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

Product Features:

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$10.99

Standard Open & TracLoc pinion gear thrust washer for 7.5″ Ford.

Product Features:

Pinion gear thrust washer
Fits Ford 7.5″

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$15.99

Driveworks wheel bearings are a direct replacement for original parts at a much more affordable cost. Each wheel bearing is engineered to meet or exceed OE specifications, and goes through intensive quality control inspections to ensure proper fitment. Manufactured using high-precision machinery and advanced heat treatment processes, these bearings are designed for maximum durability and extended periods of use under any driving condition. Specific to certain applications, Driveworks bearings have multi-lip seals built into the bearing for increased protection against invasive contaminants and premature wear.

Product Features:

Depending on the application, specified Driveworks wheel bearings have integrated encoder rings that automatically sync with the vehicle’s anti-lock braking system (ABS) upon successful installation
Engineered, manufactured, and tested to meet or exceed OE specifications
Integrated seal design improves contamination resistance for a longer bearing life
High performance grease is used to lubricate the inner raceway to ensure smooth operation, higher operating temperatures, and minimal noise
Manufactured from high quality steel to maximize durability under even the harshest driving conditions
Brand may vary by location

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$153.99

M802048 set-up bearing (one bearing). No return.

Product Features:

Set up bearing
Fits M802048 pinion bearing
Easily slips on and off pinion journal to allow for easier pinion depth adjustment

from

$39.49

Product Features:

BUILT TO LAST: Advanced heat treatment process for strength
PREMIUM MATERIALS: Precision manufactured using premium-grade steel for lasting performance and extended bearing life
RELIABLE PERFORMANCE: Element size and quantity are engineered to meet or exceed the load rating of OE bearings
COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

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$4.99

This spindle nut washer is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this spindle nut washer matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this washer is a reliable replacement for an original part that is missing or has failed due to wear
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$149.99

The Motive Gear replacement axle shaft offers an OE-quality axle shaft at a fraction of the OE cost. Manufactured from 1541H material on high-tolerance CNC equipment, this axle shaft is designed to provide a perfect fit every time.

Product Features:

AXLE SHAFT 8.8″ 28 SPL. 29 1/4″ 79-93 MUSTANG L & R

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$4.49

This spindle nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this spindle nut matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$6.99

All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!

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$309.99

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

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$11.99

8″ dropout housing gasket.

Product Features:

Dropout gasket
Fits Ford 8″

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$36.49

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

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$46.99

Side gear with hub for 8″ and 9″ Ford with 28 splines.

Product Features:

Side gear with hub
Fits Ford 8″ and 9″ standard open differential and Trac Loc positraction with 28 spline axles

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$23.99

Pinion gear for 8″ and 9″ Ford.

Product Features:

Pinion gear
Fits Ford 8″ and 9″

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$8.99

Product Features:

Trac Loc spring for Ford 8″ and 9″

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$35.49

Product Features:

MINI INSTALL KIT FORD 7.5

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$184.99

Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

Product Features:

Fits Ford 7.5″
Included are pinion bearings and races, pinion seal, pinion nut, crush sleeve, complete pinion shim kit, and marking compound with brush.

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$7.49

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$941.99

The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:

Fits Ford 8″ with 31 spline axles
Patented internal design reduces common locker failures
8620 internals for added strength
Assembled in the USA

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$819.99

The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon-Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.

Product Features:

Fits Ford 8″ with 31 spline axles
Trac Loc positraction
Clutch style positraction
Smooth design
Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
Fully rebuildable
Assembled in the USA

Upgrade your 1978 Mercury Zephyr with Top-Quality Drivetrains

When it comes to maintaining or upgrading your 1978 Mercury Zephyr, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mercury or enhancing its overall performance, Drivetrains are key to keeping your Zephyr functioning at its best. At Advance Auto Parts, we offer a wide selection of 139 Drivetrains for the 1978 Mercury Zephyr, designed to meet your needs without breaking the bank. From Universal Joint replacements to Transfer Cases upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Drivetrains for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Drivetrains for your 1978 Mercury Zephyr at great prices. Our Drivetrains inventory for this model ranges from just $1.29 to $941.99, with an average price of $155.09. Our 139 Drivetrains in stock come from 15 trusted brands, so you’re sure to find the right part for your 1978 Mercury Zephyr without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1978 Mercury Zephyr, we stock popular OEM and aftermarket Drivetrains from top names like Spicer, Moog, National, and more. Spicer Drivetrains start at just $31.99 and boast an impressive 4.6 stars average rating from customers. Moog and National also bring quality to the table, with Drivetrains available starting at $7.99, and at an average 4.5 stars rating. With 2,090 customer reviews and counting, our 1978 Mercury Zephyr Drivetrains have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Drivetrain upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 1978 Mercury Zephyr is always ready to roll. We’re committed to providing you with everything you need to keep your Zephyr in top shape, all in one place. Start shopping confidently below for your 1978 Mercury Zephyr!

Best-Selling Universal Joints for 1978 Mercury Zephyrs

Enhance the driving experience in your Mercury with 8 quality Universal Joint components, starting at $15.99.

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from

$35.99

Product Features:

BUILT TO LAST – Rugged design specifically engineered for fleets, off-highway and commercial vehicles
STRONG AND DURABLE – Bearing cups are cold-formed, case-hardened and precision ground for strength and durability
KEEPS DIRT OUT – Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
GREASEABLE DESIGN – Drilled and tapped grease fitting holes for easy servicing and cross trunnions with large grease reservoirs with radial grease channels for grease distribution
INHIBITS PREMATURE WEAR – Cross trunnions ground to a 15-25 RMS finish for a smooth surface free of microscopic grooves that can cause premature wear
RELIABLE PERFORMANCE – Internal anti-drainback valve integrated into thrust washer controls lubrication flow and prevents dry startup
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on

from

$33.99

Product Features:

BUILT TO LAST – Rugged design specifically engineered for applications with higher torque and horsepower
COMPREHENSIVE COVERAGE – Available for foreign and domestic nameplates
CORROSION PROTECTION – Exclusive MICRO SHIELD coating protects against rust and corrosion
KEEPS DIRT OUT – Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
STRONG AND DURABLE – Bearing cups are cold-forged, case-hardened and precision ground while steel cross is forged and carburized heat treated for strength and durability

from

$46.99

Product Features:

BUILT TO LAST – Rugged design specifically engineered for applications with higher torque and horsepower
COMPREHENSIVE COVERAGE – Available for foreign and domestic nameplates
CORROSION PROTECTION – Exclusive MICRO SHIELD coating protects against rust and corrosion
GREASABLE DESIGN – Bearing cups feature a radial design to allow 360 Degrees lubricant distribution to all bearing surfaces
KEEPS DIRT OUT – Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
STRONG AND DURABLE – Bearing cups are cold-forged, case-hardened and precision ground while steel cross is forged and carburized heat treated for strength and durability

from

$15.99

Driveworks Universal Joints are designed to meet or exceed OE fit, form, and function. These universal joints are set to provide superior quality and easy installation. Driveworks Universal Joints are constructed from quality materials for extended durability. Driveworks Universal Joints are pre-lubricated with premium grease to provide a longer service life. The grease fittings are pre-installed to allow for easy maintenance (where applicable).

Product Features:

The cross is hot forged for the higher torque and horsepower
The bearing cups are made by cold forging, having higher strength and better rigidity
Bearing cups allow 360 lubricant distribution to bearing surfaces, and are precision-ground for maximum load-carrying capabilities
Lubrication grooves are designed to ensure grease penetration to entire journal and needle bearings
Grease fitting in the cross allows for easy maintenance and the flexible use of the whole assembly
Snap rings are held to strict tolerances to ensure proper cup position and retention
Nitrile rubber seals to optimize grease retention and reduce contamination

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$44.99

Yukon 1310 U/Joint with zerk fitting on cross. 3.219″ snap ring span, 1.062″ cap diameter. Outside snap ring.

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$59.99

Yukon 1310 to 1330 adapter U/Joint. The 1310 side has a 3.219″ span and 1.062″ caps. The 1330 side has a 3.625″ span and 1.062″ caps. Both sides are outside snap ring.

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$57.99

1310 Yukon Lifetime U/joint. 1.718″ snap ring span, 1.062″ cap diameter. Inside snap ring.

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$44.99

When you see the Spicer name, you know you are buying the highest quality product available. Spicer universal joints are no exception. Dana manufactures a full line of Spicer universal joints that are engineered to ensure longer life for vehicles in a wide variety of applications, from light vehicle to commercial and off-highway.

Most Popular 1978 Mercury Zephyr Transfer Cases

Customize your Mercury with 4 Transfer Cases products like Input Shaft Bearings and Transfer Case Output Shaft Bearings, all priced under $62.99.

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from

$36.49

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

from

$11.29

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$62.99

The FAG repair sleeve is a precision element that provides additional sealing for damaged shafts. Made of heat-treated stainless steel, the FAG repair sleeve signifcantly increases the life of the shaft and prevents premature wear. Since no shaft removal or machining is required during the repair, the repair sleeve is a cost effective repair solution to protect damaged surfaces.

Product Features:

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$13.99

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

Top Picks for 1978 Mercury Zephyr Differentials

Upgrade Mercury Zephyrs with top-quality Differentials parts, including 109 OEM and aftermarket selections for your 1978 model.

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from

$7.99

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$9.29

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$7.99

High-quality Differential Component Shim

Product Features:

SHIM KIT FITS-8.25-F7.5-AMC20-GM0

from

$37.99

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

from

$444.99

The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.Powertrax® = Extreme Traction Systems!

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$333.99

Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:

For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.

from

$7.49

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Validated for fit, form and function
Unsurpassed quality you can trust

from

$6.99

from

$19.99

Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

Product Features:

PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN – Engineered to meet OE specifications
COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$5.99

Value-priced seal meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$6.49

This differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles
Required replacement – when servicing the differential
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$5.99

Product Features:

Copper washer
Fits Ford 8″ and 9″

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$17.49

Product Features:

Brand may vary by location

from

$10.99

Crush Sleeve for Model 35, Chrysler 7.25″, 8.25″ Ford 8″ & GM 7.75″. Approx 0.495″ long.

Product Features:

Crush sleeve for AMC Model 35, Chrysler 7.25″ and 8.25″, Ford 8″ and GM 7.75″
0.495″ tall

from

$37.99

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool

from

$7.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$5.99

Ford 8″ & 9″ standard Open, AG, & Detroit locker ring gear bolt. 7/16″ head, .925″ long.

Product Features:

Ring gear bolt for Ford 8″ and 9″
For use with standard open carrier, Auburn Gear limited slip and Detroit Locker
7/16″ head
.925″ long

from

$5.99

Ford 8″ & 9″ standard Open, AG, & Detroit locker ring gear bolt, 1.0″ long, Ford.

Product Features:

Ring gear bolt for Ford 8″ and 9″
For use with standard open carrier, Auburn Gear limited slip and Detroit Locker
1.0″ long

from

$4.99

Ford 8″ & 9″ TracLoc ring gear bolt, 1-1/4″ long.

Product Features:

Ring gear bolt for Ford 8″ and 9″
For use with Trac Loc limited slip
1.25″ long

from

$7.99

Pinion nut for Ford 7.5″, 8″, 8.8″, 9 3/8″ & 9″. 1 1/6″ socket, 3/4″ x 20 thread.

Product Features:

Pinion nut for Ford 7.5″, 8″ and 9″
3/4″ x 20 thread
1 1/6″ socket

from

$1.99

Product Features:

Ford 7.5″, 8.8″ Ring Gear Bolt

from

$148.99

Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

from

$3.99

from

$5.99

Product Features:

Side gear thrust washer for Ford 8″, Ford 9″ and AMC Model 20
0.030″ thick

In-Demand Drive Shafts and Axles for 1978 Mercury Zephyrs

Select from 14 premium Drive Shafts and Axles parts for your 1978 Mercury Zephyr, with prices ranging from $7.99 to $689.99.

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from

$7.99

Value-priced seal meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$31.99

OE engineering and field tested experience is why the Spicer brand is the most trusted in the industry.
Forged with high-quality steel, these u-joints are heat treated and case-hardened with precision to specific levels, ensuring optimal strength and durability.
The process of precision grinding the seal and bearing surfaces helps to improve the life of the seal and bearing.
Zerk allows for lubricating at regular intervals to help extend the life of the part.

from

$22.49

This drive shaft bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this engine mount bolt matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this drive shaft bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$38.99

You expect a lot from your vehicle, and Spicer Life Series (SPL) universal joints deliver. SPL universal joints consistently outperform competitors, so you can hit the road or trail with confidence. Check out the difference that SPL universal joints can make in your vehicle, and make sure you are getting the longer life, increased bearing capacity and lower maintenance costs that Spicer Life Series (SPL) can provide.

from

$13.99

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

PREMIUM MATERIALS — Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION — Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN — Engineered to meet OE specifications
COMPREHENSIVE COVERAGE — Industry-leading coverage for domestic and import applications
RIGOROUS TESTING — Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$22.99

Manufactured with premium-grade steel, National® cylindrical bearings are designed and engineered to meet OE specifications.

Product Features:

Premium bearing design matches OEM specifications
Precision manufactured using premium-grade steel for outstanding durability and performance
Controlled heat treating process for lasting performance and extended bearing life
Industry leading coverage
Professional technicians know they can depend on National

from

$10.99

Design type: spring loaded; single-lip
Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
Good low temperature capability
Low swell in hydrocarbon fluids
Delivers quality and reliable performance for every type of repair

from

$18.29

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$15.99

Depending on the application, specified Driveworks wheel bearings have integrated encoder rings that automatically sync with the vehicle’s anti-lock braking system (ABS) upon successful installation
Engineered, manufactured, and tested to meet or exceed OE specifications
Integrated seal design improves contamination resistance for a longer bearing life
High performance grease is used to lubricate the inner raceway to ensure smooth operation, higher operating temperatures, and minimal noise
Manufactured from high quality steel to maximize durability under even the harshest driving conditions
Brand may vary by location

from

$39.49

Product Features:

BUILT TO LAST: Advanced heat treatment process for strength
PREMIUM MATERIALS: Precision manufactured using premium-grade steel for lasting performance and extended bearing life
RELIABLE PERFORMANCE: Element size and quantity are engineered to meet or exceed the load rating of OE bearings
COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$43.99

Outer axle seal for 8″ Ford.Yukon Mighty seal.

Product Features:

Outer axle seal
Fits Ford 8″

from

$689.99

Carrier bearing puller
Works with an impact gun to safely and easliy remove carrrier bearings
Not compatible with Dana 70HD, Dana 80, Ford 10.25″ and 10.5″ or Gm and Chrysler 11.5″ applications

from

$77.99

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

from

$10.99

National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Design type: spring loaded; single-lip
Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
Resistance to EP lubricants
Low swell in hydrocarbon fluids
Delivers quality and reliable performance for every type of repair

Most Sold 1978 Mercury Zephyr Spindles

Explore our best-selling Mercury parts for the 1978 Zephyr among 4 OEM and aftermarket options starting from $2.99.

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from

$4.49

This spindle nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this spindle nut matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$6.99

Direct replacement – this spindle nut retainer matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this retainer is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$4.99

Direct replacement – this spindle nut washer matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this washer is a reliable replacement for an original part that is missing or has failed due to wear
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

from

$2.99

Direct replacement – this spindle nut washer matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this washer is a reliable replacement for an original part that is missing or has failed due to wear
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

Top-Rated Drivetrains Brands For Your 1978 Mercury Zephyr

Shop for the best-rated brands offering Drivetrains and other products for your 1978 Mercury Zephyrs. Below you’ll find some of our best rated Drivetrains from Spicer, Moog, and National, and more. Drivetrains from these brands that fit a 1978 Zephyr start at just $7.99 and are rated as high as 4.6 stars. OEM and aftermarket Drivetrains don’t get more top quality, durable, and affordable than from the brands below.

Popular Spicer 1978 Mercury Zephyr Drivetrains

When it comes to maintaining or upgrading your 1978 Mercury Zephyr, using quality Drivetrains is essential to ensure durability and a perfect fit. Spicer ticks all of those boxes. We offer a wide selection of Spicer Drivetrains, specifically designed for the 1978 Mercury Zephyr. With over 2 Spicer brand Drivetrains in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $31.99, with an average price of just $35.49. Plus, with over 14 customer reviews and an average rating of 4.6 stars, you can trust that our Spicer Drivetrains will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $31.99

(12)

Universal Joint, Greaseable 1310 Series OSR

“No problems with Installation and appears to be quality part! Great for my old School Street Car!”

from $38.99

(2)

Universal Joint

“I use this on a 4×4 off-road. It’s always a tough trade-off between the greaseable and non-greasable u-joints. The non-greaseable is stronger. The”

Popular Moog 1978 Mercury Zephyr Drivetrains

Moog auto parts is one of the highest quality Drivetrain brands in the market. Any 1978 Mercury Zephyr owner should feel confident when installing genuine Moog parts in their vehicle. To ensure the best fit and performance for your 1978 Zephyr, Advance Auto Parts carries a full inventory of 3 Moog Drivetrains. Plus you will be keeping your Mercury in peak condition while saving money because prices on these Moog Drivetrains range from $33.99 to $46.99, plus, with more than 147 customer reviews and an impressive 4.5 stars average rating, you can be confident the Fram Drivetrains below will deliver on both quality and value.

from $35.99

(82)

Greaseable Premium Universal Joint

“Great u joints works very well I’ll recomended”

from $46.99

(37)

Greaseable Super Strength Universal Joint

“grease fitting I like location dont like needle design to grease should be regular design fitting”

from $33.99

(28)

Non-Greaseable Super Strength Universal Joint

“installed as needed”

FAQs for 1978 Mercury Zephyr Drivetrains

Which Drivetrains are best-sellers for 1978 Mercury Zephyrs?

Out of 139 Drivetrains that fit 1978 Mercury Zephyrs, the following parts are the top sellers:

Universal Joint (10265714) – $15.99
Oil Seal (5441617) – $7.99
Universal Joint, Greaseable 1310 Series OSR (10855076) – $31.99

What’s the price range for 1978 Mercury Zephyr Drivetrains?

Drivetrain prices for the 1978 Mercury Zephyr start at $1.29 and go up to $941.99 for the most premium parts.

What’s the average price of a Drivetrain for a 1978 Mercury Zephyr?

The average price for Drivetrains for the 1978 Mercury Zephyr is $155.09. Keep in mind the variety of part types within our Drivetrain category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Drivetrains for other Mercury Zephyr model years?

Yes, we currently carry Drivetrains for 4 model years of Mercury Zephyrs between 1979 and 1983. Drivetrains are bought most frequently for the following model years: 1983, 1982, 1981, 1980, and 1979.

What are the cheapest Drivetrains for my 1978 Mercury Zephyr?

The cheapest 1978 Mercury Zephyr Drivetrains we carry in stock are:

Differential Ring Gear Bolt (10282257) – $1.29
Ring Gear Bolt (20520509) – $1.99
Differential Cross Shaft (10282201) – $2.99
Spindle Washer – I.D. 13/16 In. O.D. 1-21/32 In. Thickness 3/32 In. (Sold by each) (22148784) – $2.99
Crush Sleeve (10592883) – $2.99

What are the top-rated Drivetrains that fit the 1978 Mercury Zephyr?

Out of 2,090 reviews by customers, our 1978 Mercury Zephyr Drivetrains have an average customer rating of . These are some of the highest-rated Drivetrain types for the 1978 Mercury Zephyr and their top-rated products:

Differentials
- Bearing Race (3277585) – $7.99
- Differential Pinion Shim Kit (20520100) – $7.99
- Shaft Repair Sleeve (3271773) – $37.99
Universal Joints
- Bearing Race (3277585) – $7.99
- Differential Pinion Shim Kit (20520100) – $7.99
- Shaft Repair Sleeve (3271773) – $37.99

What types of Drivetrains do you sell for my 1978 Mercury Zephyr?

As of 11/2/25, these are some of the most in-demand types of Drivetrains for a 1978 Mercury Zephyr:

Can I get help with 1978 Mercury Zephyr Drivetrain orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Mercury Drivetrains and more.

What is your return policy for Mercury Zephyr Drivetrains?

Advance Auto Parts keeps returns simple. For new Mercury Zephyr Drivetrains and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1978 Mercury Zephyr Drivetrains

Yukon Gear – Pinion Support Bolt For 8" And 9" Ford (Part No.33242)

Yukon Gear – The Carrier Bearing Puller (Part No.56034)

Yukon Gear – Un-Notched Cross Pin Shaft For 7.5" Ford – Oem, Not Auburn Gear (Part No.33330)

Yukon Gear – Good Used Yoke For Ford 8" With A 1310 U/Joint Size (Part No.41047)

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Yukon Gear – The Carrier Bearing Puller (Part No.56072)

National – Shaft Repair Sleeve (Part No.99199)

Dorman – Spindle Nut 13/16 In.-20 Hex Size 1-1/8 In. (Sold by each) (Part No.615-075)

FAG US – Cone (Part No.KL68149)

Yukon Gear – Standard Open & Tracloc Pinion Gear And Thrust Washer For 7.5" Ford (Part No.33296)

Driveworks – Wheel Bearing: Direct Fit, 1 Piece (Part No.S-5707)

Yukon Gear – Set Up Bearing (Part No.56045)

National – Multi-Purpose Bearing (Part No.307-L)

Dorman – Spindle Washer – I.D. 13/16 In. O.D. 1-21/32 In. Thickness 3/32 In. (Part No.618-013.1)

Motive Gear – Axle Shaft (Part No.MG1231)

Dorman – Standard Spindle Nut 13/16 In.-20 Hex Size 1-1/8 In. (sold by each) (Part No.615-074)

Motive Gear – Differential Pinion Nut (Part No.379570S)

Pro-King – Differential Internal Nest Kit (Part No.761A717)

Yukon Gear – 8" Dropout Housing Gasket (Part No.23010)

National – Shaft Repair Sleeve (Part No.99187)

Yukon Gear – Side Gear With Hub For 8" And 9" Ford With 28 Splines (Part No.16163)

Yukon Gear – Pinion Gear For 8" And 9" Ford (Part No.16160)

Yukon Gear – Trac Loc Spring For Ford 9" & 8" (Part No.33518)

Motive Gear – Differential Gear Install Kit (Part No.F7.5IK)

Yukon Gear – Pinion Install Kit For Ford 7.5" Differential (Part No.13039)

Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 55393)

Yukon Gear – Grizzly Locker For Ford 8" With 31 Spline Axles (Part No.28007)

Yukon Gear – Trac-Loc For Ford 8" Wtih 31 Spline Axles – Street Design (Part No.26004)

MOOG Driveline Products – Greaseable Premium Universal Joint (Part No.369)

MOOG Driveline Products – Non-Greaseable Super Strength Universal Joint (Part No.269)

MOOG Driveline Products – Greaseable Super Strength Universal Joint (Part No.280)

Driveworks – Universal Joint (Part No.DW-369)

Yukon Gear – 1310 U/Joint With Zerk Fitting On Cross (Part No.42008)

Yukon Gear – 1310 To 1330 Adapter U/Joint (Part No.42005)

Yukon Gear – 1310 Lifetime U/Joint (Part No.42003)

Spicer – Spicer Universal Joint (Part No.5-1310-1X)

National – Shaft Repair Sleeve (Part No.99187)

Driveworks – Taper Bearing Cone (Part No.S-M-88048)

FAG US – Repair Sleeve (Part No.SR3501)

FAG US – Cone (Part No.KL68149)

National – Bearing Race (Part No.M88010)

National – Bearing Race (Part No.LM501314)

Motive Gear – Differential Pinion Shim Kit (Part No.1100)

National – Shaft Repair Sleeve (Part No.99199)

Powertrax – Lock Right Locker (Part No.1830-LR)

Richmond Gear – Differential Ring And Pinion (Part No.49-0111-1)

Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 55393)

Motive Gear – Differential Pinion Nut (Part No.379570S)

National – Tapered Roller Bearing Cone (Part No.LM501349)

Driveworks – Oil Seal (Part No.S-3604)

Dorman – Help – Pinion Crush Sleeves (Part No.81056)

Yukon Gear – Copper Washer For Ford 9" & 8" Dropout Housing (Part No.32339)

Driveworks – Tapered Roller Bearing (Part No.S-M-802048)

Yukon Gear – Crush Sleeve (Part No.33093)

National – Shaft Repair Sleeve (Part No.99181)

Driveworks – Taper Bearing Cup (Part No.S-LM-501314)

Yukon Gear – Ford 8" & 9" Standard Open, Ag, & Detroit Locker Ring Gear Bolt (Part No.33058)

Yukon Gear – Ford 8" & 9" Standard Open, Ag, & Detroit Locker Ring Gear Bolt (Part No.33043)

Yukon Gear – Ford 8" & 9" Tracloc Ring Gear Bolt (Part No.33044)

Yukon Gear – Pinion Nut (Part No.33154)

Motive Gear – Ring Gear Bolt (Part No.D5AZ4216A)

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Motive Gear – Differential Crush Sleeve (Part No.B7A4662A)

Yukon Gear – Dana 44, Ford 8" / 9", And Model 20 Side Gear Thrust Washer Replacement (Part No.33283)

Driveworks – Oil Seal (Part No.S-8660S)

Spicer – Universal Joint, Greaseable 1310 Series OSR (Part No.5-153X)

Dorman – Help – Driveshaft Flange Bolts (Part No.80992)

Spicer – Universal Joint (Part No.5-1310X)

National – Bearing (Part No.M88048)

National – Wheel Bearing (Part No.5707)

National – Wheel Seal (Part No.8660S)

Driveworks – Axle Repair Bearing (Part No.S-RP-5707)

Driveworks – Wheel Bearing: Direct Fit, 1 Piece (Part No.S-5707)

National – Multi-Purpose Bearing (Part No.307-L)

Yukon Gear – Outer Axle Seal For 8" Ford (Part No.30031)

Yukon Gear – The Carrier Bearing Puller (Part No.56034)

FAG US – Axle Shaft Repair Bearing (Part No.DR0148K)

National – Manual Transmission Input Shaft Seal (Part No.2503N)

Dorman – Standard Spindle Nut 13/16 In.-20 Hex Size 1-1/8 In. (sold by each) (Part No.615-074)