1978 Chevrolet El Camino Differentials

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Keep Your 1978 Chevrolet El Camino in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1978 Chevrolet El Camino looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearings, Rear Differential Cover Gaskets, and Differential Covers. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like National, Motive Gear, and Felpro. For example, National Differentials start at just $11.99 with an average 4.3 star rating. Motive Gear and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 2,968 reviews and a solid 4 star average, you can shop with confidence knowing other Chevrolet El Camino owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 Chevrolet El Camino Differential at Advance Auto Parts is around $191.38, with a range that starts at $2.99 and goes up to $1,015.00. With 147 options in stock from 13 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket, and Multi-Purpose Bearing start at just $8.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1978 Chevrolet El Camino in peak condition, inside and out.

Essential 1978 Chevrolet El Camino Differentials

Yukon Gear – Standard Open/Positraction Pinion Gear and Thrust Washer for 8.2" GM CI Corvette (Part No.33305)

Standard Open/Positraction Pinion Gear and Thrust Washer for 8.2" GM CI Corvette

from

$34.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Pinion gear thrust washer
  • Fits GM 8.2″ and 1963-1979 Corvette
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Yukon Gear – Ltd. Slip Clutch Guide, Chry 9.25/Dana 44/50/GM 12 Bolt/8.2"/8.5"/8.6"/Nis M226 (Part No.33352)

Ltd. Slip Clutch Guide, Chry 9.25/Dana 44/50/GM 12 Bolt/8.2"/8.5"/8.6"/Nis M226

from

$8.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Clutch guide for Chrysler 9.25″, Dana Spicer 44, Dana Spicer 50, Ford 8.8″, GM 12 bolt passenger car, GM 8.2″, 8.5″ and 8.6″, 1963-1979 Corvette and Nissan Titan
  • Compatible with Dura Grip positractions only
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Yukon Gear – 8.75" Chrysler & 55P Chevy Power Lok clutches, Model 20 also, POSI. (Part No.16148)

8.75" Chrysler & 55P Chevy Power Lok clutches, Model 20 also, POSI.

from

$275.99
Yukon Gear & Axle clutch kits fit popular GM and Chrysler diffs outfitted with a Power Lok positraction unit feature 14 advanced carbon clutch plates, ensuring total traction and long-lasting performance.

Product Features:
  • Clutch kit
  • Fits Chrysler 8.75″, 1955-1964 GM passenger car and AMC Model 20 Power Lok positraction
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Powertrax – Grip PRO Traction System (Part No.GT436035)

Grip PRO Traction System

from

$596.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. 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!
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Powertrax – Differential Lock Assembly (Part No.9207883005)

Differential Lock Assembly

from

$551.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.

Product Features:
  • The Power Trax Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Power Trax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Power Trax lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Power Trax 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.
  • Power Trax ia an Extreme Traction System
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Motive Gear – Differential Pinion Shim Kit (Part No.1100)

Differential Pinion Shim Kit

from

$7.99
High-quality Differential Component Shim

Product Features:
  • SHIM KIT FITS-8.25-F7.5-AMC20-GM0
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USA Standard Gear – Differential Open Unit/Component (Part No.59024)

Differential Open Unit/Component

from

$146.99
USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard Limited warranty against defects on their ring & pinion sets.

Product Features:
  • Fits GM 8.2″
  • Provides 100% traction to both wheels at all times
  • Installs into standard open carrier case
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Yukon Gear – GM 7.5" Standard Open Side Gear Thrust Washer (Part No.33389)

GM 7.5" Standard Open Side Gear Thrust Washer

from

$11.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Side gear thrust washer
  • Fits GM 7.5″
See More

Schaeffler – Cup (Part No.M88010)

Cup

from

$10.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.

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
See More

Yukon Gear – Cross Pin Shaft for GM 8.2" Posi Case – Will Fit Dura Grip or Eaton Posi (Part No.33204)

Cross Pin Shaft for GM 8.2" Posi Case - Will Fit Dura Grip or Eaton Posi

from

$30.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Cross pin shaft
  • Fits GM 8.2″
  • Dura Grip positraction
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Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt

from

$9.99
5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

Product Features:
  • Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
  • 1/2″ head
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Yukon Gear – Dura Grip Spider Gear Set for GM 7.5" & 7.625" Diffs, 26 Spline (Part No.16116)

Dura Grip Spider Gear Set for GM 7.5" & 7.625" Diffs, 26 Spline

from

$279.99
Yukon Gear & Axle spider gear kits utilize the highest quality materials and best production techniques in the industry to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.

Product Features:
  • Fits GM 7.5″ and 7.625″ differentials
  • For Yukon Dura Grip positraction only
  • 26 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers
  • Does not include clutches
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Yukon Gear – Chrome Cover for 8.6", 8.5" and 8.2" GM Rear (Part No.32017)

Chrome Cover for 8.6", 8.5" and 8.2" GM Rear

from

$74.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.

Product Features:
  • Fits GM 8.2″, 8.5″ and 8.6″
  • Chrome
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Motive Gear – Differential Gear Install Kit (Part No.GM12IKC)

Differential Gear Install Kit

from

$64.99


Product Features:
  • MINI INSTALL KIT GM 12BLT 8.875 CAR
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USA Standard Gear – Differential Rebuild Kit (Part No.37051)

Differential Rebuild Kit

from

$253.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits GM 8.2″
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.
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Richmond Gear – Differential Mini Spool (Part No.78-7528-1)

Differential Mini Spool

from

$151.99
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.
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Dorman – Differential Pinion Yoke Assembly (Part No.697-553)

Differential Pinion Yoke Assembly

from

$242.99
Worn or damaged differential end yoke causing driveline Vibrations- This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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Pro-King – Differential Cross Shaft (Part No.742G930)

Differential Cross Shaft

from

$2.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • Meets or exceeds OE specifications
See More

National – Bearing Race (Part No.HM88510)

Bearing Race

from

$11.29
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
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:
  • Includes four quarts of Redline Shockproof oil
See More

Yukon Gear – Pinion Install Kit for GM 12 Bolt Car Differential (Part No.13056)

Pinion Install Kit for GM 12 Bolt Car Differential

from

$232.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.

Product Features:
  • Fits GM 12 bolt passenger car
  • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
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Yukon Gear – Posi Spring Kit for GM 7.5", with Preload Plates (Part No.33206)

Posi Spring Kit for GM 7.5", with Preload Plates

from

$153.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Positraction spring kit
  • Fits GM 7.5″ and 7.625″ Dura Grip
  • Includes preload plates
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Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 55072)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$8.99
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
See More

USA Standard Gear – Differential Spider Gear Kits (Part No.39027)

Differential Spider Gear Kits

from

$214.99
Yukon 35 spline (outside spline) male coupler for 9″ Ford. All Yukon yokes come with a Limited warranty against manufacturing defects.

Product Features:
  • Spider gear kit
  • Fits GM 8.5″ 30 spline open differential
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
See More

Yukon Gear – Crush Sleeve Eliminator Kit for GM 8.5" & Chrysler 9.25" (Part No.55048)

Crush Sleeve Eliminator Kit for GM 8.5" & Chrysler 9.25"

from

$57.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:
  • Crush sleeve eliminator kit for GM 8.5″, 8.6″ and Chrysler 9.25″ rear
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Yukon Gear – 1541H Alloy Rear Axle for GM 7.5" Passenger, Monte Carlo and El Camino (Part No.21288)

1541H Alloy Rear Axle for GM 7.5" Passenger, Monte Carlo and El Camino

from

$273.99
Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. High quality alloys and the latest in heat-treating technologies provide a stronger-than-stock axle for off-road, on the street, or at the track.

Product Features:
  • Fits GM 7.5″ in Monte Carlo and El Camino
  • 26 spline
  • 28 7/16″ long
See More

Yukon Gear – Super Carrier Shim Kit for Ford 7.5", GM 7.5", 8.2" & 8.5 (Part No.55001)

Super Carrier Shim Kit for Ford 7.5", GM 7.5", 8.2" & 8.5

from

$59.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:
  • Super carrier shim kit for Ford 7.5″, GM 7.5″, 7.625″, 7.6″ IFS, 7.6″ IRS, 7.75″, 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and GM 8.5″ front and rear
  • Interlocking design makes installation much easier
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Yukon Gear – High Performance Ring & Pinion Gear Set For GM 8.5" & 8.6" In A 5.38 Ratio (Part No.24494)

High Performance Ring & Pinion Gear Set For GM 8.5" & 8.6" In A 5.38 Ratio

from

$389.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty. This gear set does not have an ABS provision on the pinion.

Product Features:
  • Fits GM 8.5″ and 8.6″
  • 8.50″ ring gear diameter
  • 30 spline pinion
  • 10 ring gear bolts
  • 5.38 ratio
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Most Popular Differential Bearings for 1978 Chevrolet El Caminos

Enhance your 1978 Chevrolet El Camino with one of the 6 Differential Bearings we have in stock, starting at just $6.99.

National – Multi-Purpose Bearing (Part No.A-6)

Multi-Purpose Bearing

from

$16.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • CONSISTENT PERFORMANCE — Matched cup and cone components ensure consistent performance
  • 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
See More

National – Bearing Race (Part No.LM501314)

Bearing Race

from

$11.99
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
See More

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

Tapered Roller Bearing Cone

from

$21.99
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
See More

Schaeffler – Bearing – CRB (Cylindrical Roller Bearing) (Part No.FC67147)

Bearing - CRB (Cylindrical Roller Bearing)

from

$30.99
We develop and produce high-quality roller bearings, spherical bearings, and plain bearings worldwide for a wide range of applications.

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
See More

Schaeffler – Cup (Part No.M88010)

Cup

from

$10.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.

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
See More

Yukon Gear – Cross Pin Bolt (Part No.33067)

Cross Pin Bolt

from

$6.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Product Features:
  • Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 bolt car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS
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Best-Selling 1978 Chevrolet El Camino Rear Differential Cover Gaskets

Upgrade your El Camino with one of our 3 best-selling Rear Differential Cover Gaskets, earning an average 4.75 stars rating across 240 reviews.

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 55072)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

from

$8.99
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
See More

Felpro – Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (Part No.RDS 55028-1)

Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket

from

$10.99
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
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Yukon Gear – 7.5 GM Cover Gasket (Part No.23018)

7.5 GM Cover Gasket

from

$11.99
7.5 GM cover gasket.

Product Features:
  • Cover gasket
  • Fits GM 7.5″ and 7.625″
See More

Top-Quality Differential Covers for 1978 Chevrolet El Caminos

Choose a high-quality OEM or aftermarket Differential Cover for Chevrolet El Caminos and enjoy top-notch performance from $29.99.

Yukon Gear – Steel Cover for GM 7.5" & 7.625" (Part No.32331)

Steel Cover for GM 7.5" & 7.625"

from

$67.99
These Yukon replacement diff covers are a direct bolt-on.

Product Features:
  • Fits GM 7.5″ and 7.625″
  • Steel
See More

Yukon Gear – Chrome Cover for 7.5" GM (Part No.32014)

Chrome Cover for 7.5" GM

from

$67.99
These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.

Product Features:
  • Fits GM 7.5″ and 7.625″
  • Chrome
See More

Pro-King – Differential Carrier Cover (Part No.741A758)

Differential Carrier Cover

from

$29.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • Meets or exceeds OE specifications
See More

Top Picks for 1978 Chevrolet El Camino Differential Oil

Invest in one of our 6 durable Differential Oil for your 1978 Chevrolet, knowing you’re getting trusted brands and expert craftsmanship.

Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$12.49
Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in 95% of vehicles. And now, it’s recommended for most belt & chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it’s designed to help prevent leaks, reduce wear & tear, and maximize performance. Has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Valv MaxLife Multi-Vehicle ATF is suitable for most Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW & Audi vehicles. Recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC; Honda/Acura ATF-Z1 and Honda CVT; Nissan/Infiniti Matic-D, Matic-J, Matic-K and Matic-S; Hyundai/Kia SP-II, SP-III, SP-IV and SPH-IV; BMW 7045E, ETL 8072B, LA2634 and LT71141; Allison C-4; Mercedes-Benz NAG-1; Volvo 1161521, 1161540, 97340 and 1273.41; Subaru ATF HP, Lineartronic chain CVT and CVT-II, Lineartronic High Torque CVT, and CV-30; and VW/Audi G-052-025-A2 and G-052-162-A1. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA

Product Features:
  • FOR USE IN 95% OF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
  • HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
  • IMPROVED DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
  • ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations
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Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil with Posi Additive (Part No.15003)

3 Qt - 80W90 Conventional Gear Oil with Posi Additive

from

$57.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:
  • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
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Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

3 Qt - Penzoil 80W90 Conventional Gear Oil

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.

Product Features:
  • Includes three quarts of conventional oil
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Yukon Gear – Redline Synthetic "Shock Proof" Oil with Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil with Positraction Additive - 4 Quarts

from

$148.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection. This kit includes four quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Redline Synthetic "Shock Proof" Oil - 3 Quarts

from

$99.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:
  • Includes three quarts of Redline Shockproof oil
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.

Product Features:
  • Includes four quarts of Redline Shockproof oil
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Differential Pinion Seals for 1978 Chevrolet El Caminos

Make a smart move for your 1978 Chevrolet El Camino with products all priced from $9.99 to $19.99.

Yukon Gear – 7.2" GM 7.5" GM & 8.2" GM Pinion Seal (Part No.30192)

7.2" GM 7.5" GM & 8.2" GM Pinion Seal

from

$9.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.

Product Features:
  • Pinion seal
  • Fits GM 7.2″ IFS, 1999 and down GM 7.5″ and 7.625″ and GM 8.2″
  • 2.660″ O.D.
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Schaeffler – Shaft Seal (Part No.SS2588)

Shaft Seal

from

$19.99
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
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Schaeffler – Shaft Seal (Part No.SS2983)

Shaft Seal

from

$9.99
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
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Top-Rated Differential Brands For Your 1978 Chevrolet El Camino

When it comes to finding the perfect Differential for your 1978 Chevrolet El Camino, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 13 trusted brands. We carry the most popular Differential brands including Felpro, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $8.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1978 Chevrolet El Camino, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1978 Chevrolet El Camino Differentials

If you’re looking for a top-quality Differential for your 1978 Chevrolet El Camino, Advance Auto Parts has exactly what you need with our selection of Felpro Differentials. We have 2 Felpro Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $8.99 and an average cost of $9.99, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1978 Chevrolet El Camino come highly rated, with over 240 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
from $10.99
(195)
Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket
“Worked as described”

Top-Quality National 1978 Chevrolet El Camino Differentials

For those in search of a high-quality Differential for their 1978 Chevrolet El Camino, Advance Auto Parts offers a great selection of National Differentials. With 3 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $11.99, with an average price of $18.32, giving you a range of options to suit your budget. Backed by over 34 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Bearing Race
from $11.99
(2)
Bearing Race
“Reasonable price and woks well. front diff 2006 Escalade esv”
Tapered Roller Bearing Cone
from $25.99
(7)
Tapered Roller Bearing Cone
“Good price”
Multi-Purpose Bearing
from $16.99
(25)
Multi-Purpose Bearing
“Smooth”

FAQs for 1978 Chevrolet El Camino Differentials

What are the best-selling Differentials for 1978 Chevrolet El Caminos?

Out of 147 Differentials that fit 1978 Chevrolet El Caminos, the following parts are the top sellers:

What’s the price range for 1978 Chevrolet El Camino Differentials?

The prices of Differentials for the 1978 Chevrolet El Camino range from $2.99 up to $1,015.00 for the most premium parts.

What is the average price of a Differential for a 1978 Chevrolet El Camino?

The average price for Differentials for the 1978 Chevrolet El Camino is $191.38. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Differentials for other Chevrolet El Camino model years?

Yes, we carry Differentials for 24 model years of Chevrolet El Caminos between 1959 and 1987. The following model years are the most popular for Differential purchases: 1987, 1986, 1985, 1984, 1983, 1982, 1981, 1980, and 1979.

What are the cheapest Differentials for my 1978 Chevrolet El Camino?

The cheapest 1978 Chevrolet El Camino Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1978 Chevrolet models?

Yes. We stock Differentials for 23 other popular 1978 Chevrolet models. Some of the most popular are 1978 Impala Differentials, 1978 Malibu Differentials, 1978 Camaro Differentials, 1978 Monte Carlo Differentials, and 1978 Corvette Differentials.

What types of Differentials do you sell for my 1978 Chevrolet El Camino?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1978 Chevrolet El Camino:

Can I get help with 1978 Chevrolet El Camino Differential orders?

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

What is your return policy for Chevrolet El Camino Differentials?

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