1978 Chevrolet Impala Differentials

Essential 1978 Chevrolet Impala Differentials

National – Multi Purpose Seal (Part No.6818)

Multi Purpose Seal

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$21.29
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:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Yukon Gear – Positraction Clutch Guide (Part No.33352)

Positraction Clutch Guide

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$8.99
Positraction clutch guide.

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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USA Standard Gear – Standard Spider Gear Set For GM 7.625", 28 Spline (Part No.39024)

Standard Spider Gear Set For GM 7.625", 28 Spline

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$156.99
Product Features:
  • Fits GM 7.625″ rear with open differential and 28 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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Driveworks – Taper Bearing Cup (Part No.S-LM-501314)

Taper Bearing Cup

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$7.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Dorman – Help – Pinion Crush Sleeves (Part No.81058)

Pinion Crush Sleeves

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$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
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Richmond Gear – RngPnnInstlKt (Part No.83-1019-B)

RngPnnInstlKt

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$39.49
RngPnnInstlKt

Yukon Gear – Replacement Bare Case For GM 8.5" & 8.6" Dura Grip (Part No.20107)

Replacement Bare Case For GM 8.5" & 8.6" Dura Grip

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$386.99
Replacement bare case for GM 8.5″ & 8.6″ Yukon Dura Grip. Fits both 28 & 30 spline applications. This carrier case is for a Yukon Dura Grip ONLY. It is NOT a replacement carrier for a stock positraction.

Product Features:
  • Dura Grip positraction carrier case
  • Does not include spider gears
  • Fits GM 8.5″ and 8.6″
  • Fits 2.76 and up ratios only
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Powertrax – Grip PRO Traction System (Part No.GT436035)

Grip PRO Traction System

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$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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Yukon Gear – Dura Grip Positraction For GM 7.5" & 7.625" With 26 Spline Axles, 3.23 & Up (Part No.26017)

Dura Grip Positraction For GM 7.5" & 7.625" With 26 Spline Axles, 3.23 & Up

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$889.99
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 Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

Product Features:
  • Fits GM 7.5″ and 7.625″ with 26 spline axles
  • 3.23 ratio and up only
  • 4-spring, clutch style positraction
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
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National – Shaft Repair Sleeve (Part No.99193)

Shaft Repair Sleeve

from

$43.99
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
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Motive Gear – Differential Spool (Part No.FS10-28)

Differential Spool

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$187.99


Product Features:
  • FULL SPOOL GM 10 BOLT 8.5 28 SPL ST
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Yukon Gear – 1541H Axle For ’91-’96 8.5" GM Caprice And Impala (Part No.21278)

1541H Axle For '91-'96 8.5" GM Caprice And Impala

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$284.99
Yukon 1541H axle for ’91-’96 8.5″ GM Caprice and Impala with a length of 30-3/8 inches and with 30 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy front axles come with a one year warranty against manufacturing defects.

Product Features:
  • Fits 1991-1996 Caprice and Impala
  • 30 spline
  • 30 3/8″ long
  • Fits drum and disc brake applications
  • Metric bolt pattern
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Royal Purple – HMX SAE 5W-30 High-Mileage Synthetic Engine Oil (1 Quart) (Part No.11744)

HMX SAE 5W-30 High-Mileage Synthetic Engine Oil (1 Quart)

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$12.99
Royal Purple HMX SAE 5W-30 High-Mileage Synthetic Motor Oil, 1 quart is specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles. Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple’s proprietary additive technology Synerlec, HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines. In addition, HMX is fortified with stout detergents to remove engine build-up and deposits, maintain cleanliness and promote engine longevity.

Product Features:
  • Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles
  • Formulated with robust zinc/phosphorus anti-wear compounds combined with royal purple’s proprietary additive technology
  • Hmx is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines
  • Reduces friction and metal-to-metal contact for peak engine performance
  • Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up
  • High-Mileage Formula: Specifically designed for engines with more than 75,000 miles, this full synthetic engine oil helps minimize wear and restore lost performance.
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Richmond Gear – Differential Cross Shaft (Part No.CSPGM75)

Differential Cross Shaft

from

$26.49
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.
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Yukon Gear – Cross Pin Bolt (Part No.33067)

Cross Pin Bolt

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$6.99
Cross pin bolt for Chrysler 8.25″, 9.25″ rear, Ford 7.5″, 8.8″, GM 12 bolt car & truck, 7.2″ IFs, 7.5″, 7.6″, 8.0″, 8.25″ IFS & 8.5″.

Product Features:
  • Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 botl car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS
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Motive Gear – Performance Differential Ring and Pinion (Part No.G885488)

Performance Differential Ring and Pinion

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$232.99


Product Features:
  • GM 10BL 8.5 R/P 4.88 FRT/REAR MGP
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USA Standard Gear – Pinion Installation Kit For ’82-’99 GM 7.5" & 7.625" (Part No.60010)

Pinion Installation Kit For '82-'99 GM 7.5" & 7.625"

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$153.99
7.5″ & 7.625″ GM 82-99 PINION KIT .

Product Features:
  • Fits 1982-1999 GM 7.5″ and 7.625″
  • Uses Koyo bearings and races
  • Included are pinion bearings and races, pinion seal, pinion nut, crush sleeve, marking compound and brush.
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Mahle – Differential Cover G (Part No.J7018826576MAH)

Differential Cover G

from

$19.09
Differential Cover G

ACDelco – Differential Bearing (Part No.J7060723477ACD)

Differential Bearing

from

$88.94
Differential Bearing

Yukon Gear – Pinion Nut (Part No.33150)

Pinion Nut

from

$11.99
Pinion nut for GM 12 bolt car & truck, 55-62 car & truck, 8.2″, 8.2″ Buick/Olds/Pontiac & 63-79 Corvette. 1 1/8″ socket, 7/8″ x 16 thread.

Product Features:
  • Pinion nut for GM 12 bolt car and truck, 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and 1963-1979 Corvette
  • 7/8″ x 16 thread
  • 1 1/8″ socket
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Pro-King – Differential Rebuild Kit (Part No.742G004)

Differential Rebuild Kit

from

$82.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket. All products are designed to meet or exceed OE quality, form, fit and funtion.

Product Features:
  • Contains the highest quality Japanese bearings
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Powertrax – Lock Right Locker (Part No.1930-LR)

Lock Right Locker

from

$445.99
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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    National – Bearings (Part No.HM89210)

    Bearings

    from

    $14.99
    National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

    Product Features:
    • Premium bearing design matches OEM specifications
    • Precision manufactured using premium-grade steel for outstanding durability and performance
    • Crowned raceways and rollers to ensure even load distribution for maximum life
    • Industry leading coverage
    • Professional technicians know they can depend on National
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    Dorman – Differential Pinion Yoke Assembly (Part No.697-531)

    Differential Pinion Yoke Assembly

    from

    $315.99
    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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    Yukon Gear – 3/8" X 1-1/4" Ring Gear Bolt, 55P Auburn Conversion Bolt (Part No.33052)

    3/8" X 1-1/4" Ring Gear Bolt, 55P Auburn Conversion Bolt

    from

    $4.99
    3/8″ x 1-1/4″ ring gear bolt, 55P AUBURN conversion bolt.

    Product Features:
    • Ring gear bolt
    • Fits 1955-1964 GM passenger car with Auburn positraction
    • 3/8″ x 1 1/4″
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    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
    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 – 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
    Product Features:
    • Positraction spring kit
    • Fits GM 7.5″ and 7.625″ Dura Grip
    • Includes preload plates
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    Yukon Gear – Bearing Race Driver (Part No.56022)

    Bearing Race Driver

    from

    $188.99
    Bearing race driver. No return.

    Product Features:
    • Bearing race driver
    • Fits M86610 race
    • All steel construction
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    1978 Chevrolet Impala Differentials

    Maybe you’re in the middle of a full rebuild of that 1978 Chevrolet Impala. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 268 different Differentials in our inventory ranging from $0.91 to $1,566.99. That means you can find the exact parts or products you need to keep that 1978 Chevrolet Impala running smoothly.

    Differentials are only as good as their brand. We stock 13 different brands to make sure you have plenty of trusted parts to choose from for your 1978 Chevrolet Impala. Valvoline, FELPRO, and Yukon Gear are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

    We know you’ll find the perfect Differentials for your 1978 Chevrolet Impala, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 927 reviews in this category, some of the top rated parts include Differential Shaft Lock Bolt with 4.0 stars and Bearings with 3.9 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1978 Chevrolet Impala rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

    Differentials Brands To Make Your 1978 Chevrolet Impala Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 Chevrolet Impala demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your Impala the best it can be. Be sure to browse some of our top Differentials brands and parts.

    Popular Driveworks Differentials

    We carry Driveworks parts in our stock across Differential Pinion Seals categories, plus more. For a 1978 Chevrolet Impala, our most popular Driveworks Differentials include:
    Oil Seal
    from $7.79
    (1)
    Oil Seal
    Differential Pinion Seals

    Top 1978 Chevrolet Impala Differentials from Felpro

    Felpro products are another trusted brand when it comes to Differentials for your 1978 Chevrolet Impala. Popular Felpro parts include:
    Differential Cover Gasket
    from $9.99
    (195)
    Differential Cover Gasket
    Rear Differential Cover Gaskets
    DIFFERENTIAL GASKET
    from $7.99
    (45)
    DIFFERENTIAL GASKET
    Rear Differential Cover Gaskets
    Differential Cover Gasket
    from $7.49
    (7)
    Differential Cover Gasket
    Rear Housing Cover Gaskets

    FAQs for 1978 Chevrolet Impala Differentials

    What are the most purchased Differentials for the 1978 Chevrolet Impala?

    Out of 268 Differentials for the 1978 Chevrolet Impala, the most popular in our inventory are:
    DEX/MERC Automatic Transmission Fluid, 1 Gallon
    from $35.99
    (17)
    DEX/MERC Automatic Transmission Fluid, 1 Gallon
    Differential Oil
    3 Qt - 80W90 Conventional Gear Oil With Posi Additive
    from $57.99
    This product is not rated
    3 Qt – 80W90 Conventional Gear Oil With Posi Additive
    Differential Oil

    What are the top-rated 1978 Chevrolet Impala Differentials?

    Top-rated Differentials for your 1978 Chevrolet Impala based on customer reviews/ratings are:
    Differential Shaft Lock Bolt
    from $5.99
    (11)
    Differential Shaft Lock Bolt
    “great”
    Bearings
    from $23.99
    (7)
    Bearings
    “Good price”
    Differential Master Bearing Kit - Koyo
    from $156.99
    (5)
    Differential Master Bearing Kit – Koyo
    “was delivered as promised and on time”