1979 GMC G2500 Differentials

Name: Differential Pinion Shaft
Brand: Richmond Gear
SKU: 80-0269-1
Price: 64.99 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1979 GMC G2500 in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1979 GMC G2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Rear Housing 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 Motive Gear, National, and Felpro. For example, Motive Gear Differentials start at just $7.99 with an average 4.0 star rating. National and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 4,152 reviews and a solid 4 star average, you can shop with confidence knowing other GMC G2500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1979 GMC G2500 Differential at Advance Auto Parts is around $216.45, with a range that starts at $2.59 and goes up to $1,969.99. With 277 options in stock from 16 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket, 3 Qt – 80W90 Conventional Gear Oil with Posi Additive, and Tapered Roller Bearing Cone start at just $10.99 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 1979 GMC G2500 in peak condition, inside and out.

Looking for the perfect Differential for your 1979 GMC G2500? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your GMC G2500. Whether you’re driving a 1979 model or another popular model year like 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, and 1995, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.

Essential 1979 GMC G2500 Differentials

from

$64.99

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 limited 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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$108.99

Product Features:

MINI SPOOL GM12 BOLT CAR & TRUCK STRANGE # 088430

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$13.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

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$215.99

Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.

Product Features:

Fits M802011 race
All-steel construction
For accurate installation of bearing races

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$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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$41.99

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 other general maintenance items. You can count on Yukon to fulfill all your differential small parts needs.

Product Features:

Shim kit
Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction

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$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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$239.99

8.5″ GM standard Open case, 2.73 & up, 28 or 30 spline.

Product Features:

Standard open carrier case
Fits GM 8.5″ with 28 or 30 spline axles
2.73 and up ratio only
Does not include spider gears

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$4.99

3/8″ ring gear bolt washer for GM 12 bolt car & truck, 8.2 BOP & more.

Product Features:

Ring gear bolt washer for GM 12 bolt car and truck, 1955-1964 passenger car, 1963-1979 Corvette and 8.2″ Buick, Oldsmobile and Pontiac

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$6.79

This differential pinion shaft lock 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 differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and models
Ideal solution – this 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

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$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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$591.99

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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$7.99

Product Features:

Brand may vary by location

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$226.99

Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.

Product Features:

Fits GM 8.5″ and 8.6″
30 spline
Mechanics 3R u-joint size
2.556″ snap ring span
1.125″ cap diameter
Inside snap ring design
Strap style

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$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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$249.99

If you’re repairing or rebuilding a front or rear differential and want the best performance and longevity from the bearings being replaced, choose this premium differential kit. It includes high-precision bearings manufactured to tighter tolerances and engineered to last longer than common lower-grade bearings that have more backlash when subjected to the torque generated within the differential. This convenient kit also saves the time needed to source individual components. Check the product attributes and fitment details to select the correct premium differential kit for your application.

Product Features:

Ideal solution – this premium differential bearing kit features high-precision bearings to help ensure longer bearing life, prevent backlash, and restore proper differential operation
Direct replacement – the components in this all-in-one kit are engineered to precisely match the fit and function of the original equipment bearings for a seamless installation
Increased reliability – the premium bearings in this kit are manufactured to exacting tolerances and specifications from high quality materials to help ensure optimal performance
Application-specific – check the product attributes and fitment details to choose the correct kit for your application

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$709.99

Differential

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$173.99

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 8.5″ rear
Included are pinion bearings and races, pinion seal, crush sleeve , complete pinion shim kit, and marking compound with brush.

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$483.99

Yukon Gear & Axle clutch kits fit popular GM diffs outfitted with a Yukon Dura Grip positraction unit feature 18 steel clutch plates, ensuring total traction and long-lasting performance.

Product Features:

Clutch kit
Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction
18 piece kit
Steel clutches

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$6.99

Ring gear bolt for GM 7.5″, 7.6″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ & 8.6″ IRS. 7/16″ x 20.

Product Features:

Ring gear bolt for GM 7.5″, 7.625″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ and 8.6″ IRS
7/16″ x 20

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$31.49

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

Product Features:

Meets or exceeds OE specifications

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$234.99

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:

28 spline
5 lug
33 7/16″ long
Fits GM 8.5″ in 1975-1988 GM van

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$28.49

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

Product Features:

Meets or exceeds OE specifications

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$14.99

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

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$98.99

Product Features:

MINI SPOOL GM 10 BOLT 8 1/2″ 28 SPLINE

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$11.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$883.99

Yukon Gear & Axle tools are made to the highest industry standard.

Product Features:

Works on popular Ford, GM, Chrysler, and many other housings
For differentials with XHD Clamshells
Can accommodate up to one-ton applications
Comes with a handy bench-top stand
This top-quality differential tool is built to last

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$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 8.8″, GM 12 bolt passenger car and truck, GM 8.0″, 8.6″, 8.6″ IRS and 1963-1979 Corvette
Interlocking design makes installation much easier

Popular 1979 GMC G2500 Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Axle Shafts

Differential Pinion Pilot Bearings

Differential Cover Bolts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Spider Gear Kits

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Cover Plugs

Differential Clutch Packs

Differential Mini Spools

Differential Ring and Pinions

Differential End Yokes

Differential Pinion Supports

Differential Lock Assemblies

Differential Spools

Differential Carrier Bearings

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Pinion Shafts

Differential Carrier Bearing Shims

Differential Crush Sleeves

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Gear Install Kits

Differential Cross Pins

Differential Side Gear Thrust Washers

Differential Pinion Gear Thrust Washers

Differential Pinion Gear Washers

Differential Ring and Pinion Kits

Differential Carrier Bearing Races

Differential Lock Washers

Differential Clutch Pack Clips

Differential Carrier Bearing Set

Most Popular Differential Oil for 1979 GMC G2500s

Enhance your 1979 GMC G2500 with one of the 6 Differential Oil we have in stock, starting at just $12.49.

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$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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$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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$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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$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

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$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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$137.99

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

Product Features:

Includes four quarts of Redline Shockproof oil

Best-Selling 1979 GMC G2500 Rear Housing Cover Gasket

Upgrade your G2500 with our best-selling Rear Housing Cover Gasket.

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$9.99

Product Features:

Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Dana engineering-approved for fit, form and function
Meets or exceeds OE specifications

Top-Quality Differential Covers for 1979 GMC G2500s

Choose a high-quality OEM or aftermarket Differential Cover for GMC G2500s and enjoy top-notch performance from $64.99.

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$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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$255.99

These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design made from aluminum and polished to perfection.

Product Features:

Fits GM 8.5″ and 8.6″
Finned polished aluminum

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$123.99

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

Product Features:

Fits GM 8.2″, 8.5″ and 8.6″
Steel

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$64.99

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 12 bolt truck
Chrome

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$269.99

These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design made from aluminum and polished to perfection.

Product Features:

Fits GM 12 bolt truck
Finned polished aluminum

Top Picks for 1979 GMC G2500 Rear Differential Cover Gaskets

Invest in one of our 6 durable Rear Differential Cover Gaskets for your 1979 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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$9.49

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

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$21.49

Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1964-1970 Chevrolet 8.2 inch 10 bolt & 1970-1981 GM 8.5 inch ring gear

Product Features:

.047″ thick cellulose/nitrile composite gasket material
Precision die cut
Reusable

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$10.99

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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$31.49

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

Product Features:

Meets or exceeds OE specifications

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$12.99

12T cover gasket.

Product Features:

Cover gasket
Fits GM 12 bolt truck

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$10.99

8.2″ & 8.5″ rear cover gasket.

Product Features:

Cover gasket
Fits GM 8.2″, 8.5″ and 8.6″

Top-Rated Differential Bearings for 1979 GMC G2500s

Make a smart move for your 1979 GMC G2500 with products all priced from $6.99 to $28.99.

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$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

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$27.99

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

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

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$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

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$28.99

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 GM 12 bolt passenger car and truck
For OEM positraction applications only

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$18.99

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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$17.99

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

from

$14.99

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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$11.99

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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$6.99

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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$6.99

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

Top-Rated Differential Brands For Your 1979 GMC G2500

When it comes to finding the perfect Differential for your 1979 GMC G2500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 16 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 $7.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1979 GMC G2500, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1979 GMC G2500 Differentials

If you’re looking for a top-quality Differential for your 1979 GMC G2500, 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 $9.49 and an average cost of $10.24, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1979 GMC G2500 come highly rated, with over 198 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.

from $9.49

(3)

Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket

“felpro gaskets are great”

from $10.99

(195)

Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket

“Worked as described”

Top-Quality National 1979 GMC G2500 Differentials

For those in search of a high-quality Differential for their 1979 GMC G2500, 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 $17.66, giving you a range of options to suit your budget. Backed by over 11 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.

from $25.99

(7)

Tapered Roller Bearing Cone

“Good price”

from $14.99

(2)

Multi-Purpose Seal

“Front seal. Old one was leaking”

from $11.99

(2)

Bearing Race

“Reasonable price and woks well. front diff 2006 Escalade esv”

FAQs for 1979 GMC G2500 Differentials

What are the best-selling Differentials for 1979 GMC G2500s?

Out of 277 Differentials that fit 1979 GMC G2500s, the following parts are the top sellers:

Axle Housing Cover Gasket Oval Shaped 10 Bolt Hole Gasket (5185823) – $10.99
3 Qt – 80W90 Conventional Gear Oil with Posi Additive (11645418) – $57.99
Tapered Roller Bearing Cone (5052513) – $25.99

What’s the price range for 1979 GMC G2500 Differentials?

The prices of Differentials for the 1979 GMC G2500 range from $2.59 up to $1,969.99 for the most premium parts.

What is the average price of a Differential for a 1979 GMC G2500?

The average price for Differentials for the 1979 GMC G2500 is $216.45. 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 GMC G2500 model years?

Yes, we carry Differentials for 15 model years of GMC G2500s between 1980 and 1995. The following model years are the most popular for Differential purchases: 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, and 1987.

What are the cheapest Differentials for my 1979 GMC G2500?

The cheapest 1979 GMC G2500 Differentials we carry are:

Differential Pinion Gear Washer (10282533) – $2.59
Ring Gear Bolt (20520168) – $2.99
Differential Ring Gear Bolt (10282159) – $2.99
Differential Cross Shaft (10282201) – $2.99
Differential Cover Bolt (50333283) – $2.99

Does Advance Auto Parts sell Differentials for any other 1979 GMC models?

Yes. We stock Differentials for 13 other popular 1979 GMC models. Some of the most popular are 1979 Jimmy Differentials, 1979 K2500 Differentials, 1979 C2500 Differentials, 1979 K1500 Differentials, and 1979 C1500 Differentials.

What types of Differentials do you sell for my 1979 GMC G2500?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1979 GMC G2500:

Can I get help with 1979 GMC G2500 Differential orders?

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

What is your return policy for GMC G2500 Differentials?

Advance Auto Parts keeps returns simple. For new GMC G2500 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1979 GMC G2500 Differentials

Richmond Gear – Differential Pinion Shaft (Part No.80-0269-1)

Motive Gear – Differential Mini Spool (Part No.MS12C)

Driveworks – Taper Bearing Set (Part No.S-A-38)

Yukon Gear – Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs (Part No.56020)

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

Yukon Gear – Posi 12-Shim Kit, GM 8.2"/Gm 8.5"/12T/12P/Ford 8.8"/Cast Iron Vette (Part No.16042)

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

Yukon Gear – Standard Open Carrier Case, GM 8.5", 2.73 & Up (Part No.20083)

Yukon Gear – 3/8" Ring Gear Bolt Washer For GM 12 Bolt Car & Truck, 8.2 Bop & More (Part No.33347)

Dorman – Help – Differential Shaft Lock Bolt (Part No.81048)

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)

Powertrax – Differential Lock Assembly (Part No.9207053000)

Driveworks – Tapered Roller Bearing (Part No.S-LM-603012)

Yukon Gear – Yoke for 8.5" Or 8.6" GM (Mech 3R U-Joint) and Triple Lip Design (Part No.41071)

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

Dorman – Premium Ring and Pinion Master Bearing and Installation Kit (Part No.797-105)

Yukon Gear – Differential (Part No.26052)

Yukon Gear – Pinion Install Kit for GM 8.5" Differential (Part No.13069)

Yukon Gear – 18 Plate Carbon Clutches, GM 8.2"/GM 8.5"/12T/12P/Ford 8.8"/Cast Iron Vette (Part No.16110)

Yukon Gear – Ring Gear Bolt (Part No.33049)

Pro-King – Differential Cover Gasket (Part No.742G303A)

Yukon Gear – 1541H Alloy 5 Lug Rear Axle for 8.5" GM 2WD Van (Part No.21255)

Pro-King – Differential Cross Shaft (Part No.742G673)

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

Motive Gear – Differential Mini Spool (Part No.MS10-28)

Driveworks – Taper Bearing Cone (Part No.S-LM-104949)

Yukon Gear – Heavy Duty Carrier Bearing Puller Set (Part No.56072)

Yukon Gear – Super Carrier Shim Kit for Ford 8.8", GM 12 bolt car & truck, 8.6 & Vette (Part No.55002)

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

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil with Posi Additive (Part No.15003)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

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

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

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

Victor Reinz – Axle Housing Cover Gasket (Part No.71-14826-00)

Yukon Gear – Chrome Cover for 8.6", 8.5" and 8.2" GM Rear (Part No.32017)

Yukon Gear – Polished Aluminum Cover for 8.6", 8.2" and 8.5" GM Rear (Part No.32030)

Yukon Gear – Steel Cover for GM 8.2" & 8.5" Rear (Part No.32332)

Yukon Gear – Chrome Cover for GM 12 Bolt Truck (Part No.32012)

Yukon Gear – Polished Aluminum Cover for GM 12 Bolt Truck (Part No.32027)

Felpro – Axle Housing Cover Gasket Irregular Shaped 12 Bolt Hole Gasket (Part No.RDS 13391)

Mr. Gasket – Differential Gasket (Part No.84B)

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

Pro-King – Differential Cover Gasket (Part No.742G303A)

Yukon Gear – GM 12 Bolt Truck Cover Gasket (Part No.23015)

Yukon Gear – 8.2" & 8.5" Rear Cover Gasket (Part No.23020)

National – Bearing Race (Part No.LM501314)

National – Multi-Purpose Bearing (Part No.A-36)

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

Yukon Gear – Positraction Cross Pin Bolt for GM 12 Bolt Car and Truck (Part No.33344)

Schaeffler – Cup (Part No.382A)

Schaeffler – Wheel Balancer Cone (Part No.KLM104949)

Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

Schaeffler – Cup (Part No.LM104911)

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

Schaeffler – Cup (Part No.LM48510)