1979 GMC K3500 Differentials

Name: 9.25" Chrysler, Dana 60 Semi-Float X/P Bolt, 80 & Up, 5/16" Head, Tapered
Brand: Yukon Gear
SKU: 33238
Price: 9.99 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1979 GMC K3500 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 K3500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Cover Gaskets, Differential Bearings, and Rear Housing Cover Gaskets. 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, Felpro, and Valvoline. For example, National Differentials start at just $23.99 with an average 4.3 star rating. Felpro and Valvoline offer similar pricing and quality, backed by strong customer feedback. With over 2,435 reviews and a solid 4 star average, you can shop with confidence knowing other GMC K3500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1979 GMC K3500 Differential at Advance Auto Parts is around $274.30, with a range that starts at $1.89 and goes up to $1,455.00. With 325 options in stock from 15 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket, 3 Qt – 80W90 Conventional Gear Oil with Posi Additive, and Tapered Roller Bearing Cone start at just $8.29 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 4WD Components and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1979 GMC K3500 in peak condition, inside and out.

Looking for the perfect Differential for your 1979 GMC K3500? 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 K3500. Whether you’re driving a 1979 model or another popular model year like 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, and 1999, 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 K3500 Differentials

from

$9.99

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 Dana Spicer 60 with c-clip axles

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$315.99

Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.

Product Features:

Spider gear kit
Fits GM 10.5″ 14 bolt truck open differential
Includes two side gears, four pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

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$38.99

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

Product Features:

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

from

$13.99

14T cover gasket.

Product Features:

Cover gasket
Fits GM 10.5″ 14 bolt truck

from

$7.99

Oil baffle
Fits Dana Spicer 70 and 70HD

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$16.99

Right hand adjuster lock for 9.25″ GM IFS.

Product Features:

Side adjuster lock
Fits 2010 and down GM 9.25″ IFS
Right hand side

from

$312.99

Product Features:

DANA-60 R/P 4.10 STD MG (USES PRE-LOAD SHIMS)

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$19.99

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

Product Features:

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

from

$13.99

Yukon spider gear set for GM 8.2″ Dura Grip posi, 28 spline. This kit does not include clutches. This kit fits Yukon Dura Grip ONLY.

Product Features:

Cover gasket
Fits Dana Spicer 60, 70, 70U and 70HD

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$869.99

Differential

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$249.99

7/16 front wheel stud.

Product Features:

Spider gear kit
Fit Dana Spicer 70 and 80 open differential with 35 spline axles
Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

from

$215.99

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

Product Features:

For Dana 60, Dana 70, Chrysler 8.75″ w 42 case housing, and GM 10.25″ differentials
For accurate installation of bearing races
Fits HM803110 race

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$454.99

Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.

Product Features:

Included are Timken bearings and races along with high quality seals and small parts.
Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, oil baffles and slingers , thread locker, marking compound with brush, and gasket.
Fits Dana Spicer 70U

from

$22.99

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

Product Features:

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

from

$79.99

The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver select ability.

Product Features:

Seal housing for Dana Spicer 60
Includes O-rings

from

$7.99

Differential Cover B

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$704.99

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.

Product Features:

Fits standard rotation Dana Spicer 60
9.75″ ring gear diameter
29 spline pinion
12 ring gear bolts
3.54 ratio

from

$26.99

Cross pin shaft
Fits Dana Spicer 60

from

$276.99

Set-up carrier bearing kit (2 bearings, no races) for Dana 60 and 70. 387A. No return.

Product Features:

Set up bearing kit
Fits Dana Spicer 60
Easily slips on and off carrier journals to allow for easier carrier shim adjustment

from

$1168.99

Differential

from

$7.99

Dana 60 & Dana 70 Power Lok case bolt.

Product Features:

Power Lok case bolt for Dana Spicer 60 and 70
7/16 x 14 thread
3.5″ long
9/16″ hex head

from

$414.99

Yukon Full Spools are a cost-effective way to convert a diff to 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each Yukon spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.

Product Features:

Fits Chrysler Dana Spicer 60 with 35 spline axles
4.10 and down ratio only
Provides 100% traction to both wheels at all times
Not recommended for street driven vehicles

from

$8.99

Clutch guide for Chrysler 9.25″, Dana Spicer 44 and Dana Spicer 60
For Trac Loc positraction applications only

from

$7.99

Pinion gear thrust washer for Dana Spicer 70 and 80

from

$126.99

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:

Carrier shim kit
Fits Dana Spicer 70 and 70HD

from

$9.99

Product Features:

KIT SHIM PINION

from

$8.29

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

Product Features:

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

from

$44.49

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

Popular 1979 GMC K3500 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

Front Housing Cover Gaskets

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 Clutch Packs

Differential Ring and Pinions

Differential End Yokes

Differential Lock Assemblies

Differential Air System Seal Housings

Rear Differential Pinion Bearings

Differential Spools

Differential Carrier Bearings

Front Differential Cover Gaskets

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

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 Bearing Baffles

Differential Pinion Gear Thrust Washers

Differential Drive Pinion Gear Bearing Retainer Bolts

Differential Drive Pinion Oil Deflectors

Differential Carrier Bolts

Differential Ring and Pinion Kits

Differential Spider and Pinion Gear Kits

Limited Slip Differential Assemblies

Differential and Pinion Shim Kits

Differential Clutch Pack Clips

Differential Carrier Bearing Set

Most Popular Rear Differential Cover Gaskets for 1979 GMC K3500s

Enhance your 1979 GMC K3500 with one of the 4 Rear Differential Cover Gaskets we have in stock, starting at just $9.99.

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from

$13.99

14T cover gasket.

Product Features:

Cover gasket
Fits GM 10.5″ 14 bolt truck

Performance Differential Gasket - Dana 70

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$47.99

Spicer performance differential cover gaskets offer all-makes coverage for street, strip, drag, and off-road applications. These gaskets are reusable offering a clean release during replacement. Built with a mechanically and chemically bonder woven steel.

Product Features:

Made to adhere without messy RTV sealant This saves on install time by eliminating the time needed for RTV cure.
Provides no re-torque design with maximum compression and sealing.
Manufactured with proprietary high-density performance material.
Made in the USA.

Performance Differential Gasket - Gm 10.5 Axle - 14 Bolt

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$34.99

Made to adhere without messy RTV sealant This saves on install time by eliminating the time needed for RTV cure.
Provides no re-torque design with maximum compression and sealing.
Manufactured with proprietary high-density performance material.
Made in the USA.

from

$9.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

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.

Best-Selling 1979 GMC K3500 Differential Bearings

Upgrade your K3500 with one of our 7 best-selling Differential Bearings, earning an average 4.5 stars rating across 7 reviews.

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from

$23.99

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

Product Features:

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

from

$43.99

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

Product Features:

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

from

$17.99

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

Product Features:

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

from

$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

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$18.99

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

from

$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

$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

Top-Quality Rear Housing Cover Gaskets for 1979 GMC K3500s

Choose a high-quality OEM or aftermarket Rear Housing Cover Gasket for GMC K3500s and enjoy top-notch performance from $8.29.

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from

$8.29

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

Top Picks for 1979 GMC K3500 Differential Oil

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

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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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$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

from

$137.99

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

Product Features:

Includes four quarts of Redline Shockproof oil

Differential Covers for 1979 GMC K3500s

Make a smart move for your 1979 GMC K3500 with products all priced from $59.99 to $149.99.

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from

$149.99

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

Product Features:

Fits Dana Spicer 70
Steel

from

$92.99

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

Product Features:

Fits GM 10.5″ 14 bolt truck
Steel

from

$59.99

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 10.5″ 14 bolt truck
Chrome

from

$114.99

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

Product Features:

Fits standard rotation Dana Spicer 60
Steel

from

$89.99

Chrome replacement cover for Dana 60 and 61(not reverse rotation!).

Product Features:

Fits standard rotation Dana Spicer 60
Chrome

Top-Rated Differential Brands For Your 1979 GMC K3500

When it comes to finding the perfect Differential for your 1979 GMC K3500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 15 trusted brands. We carry the most popular Differential brands including Valvoline, Felpro, and National, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $8.29. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1979 GMC K3500, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 1979 GMC K3500 Differentials

If you’re looking for a top-quality Differential for your 1979 GMC K3500, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 1 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $12.49, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1979 GMC K3500 come highly rated, with over 446 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $12.49

(446)

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

“seems to be ok”

Top-Quality Felpro 1979 GMC K3500 Differentials

For those in search of a high-quality Differential for their 1979 GMC K3500, Advance Auto Parts offers a great selection of Felpro Differentials. With 2 Felpro 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 $8.29, with an average price of $13.14, giving you a range of options to suit your budget. Backed by over 14 customer ratings and an average rating of 4.6 stars, Felpro Differentials provide both reliability and excellent performance. Choosing a Felpro Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $17.99

(1)

Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket

“OEM only uses silicone , the gasket set with a thin layer of silicone is a much better sealant method”

from $8.29

(13)

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket

“works good”

FAQs for 1979 GMC K3500 Differentials

What are the best-selling Differentials for 1979 GMC K3500s?

Out of 325 Differentials that fit 1979 GMC K3500s, the following parts are the top sellers:

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (5723531) – $8.29
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 K3500 Differentials?

The prices of Differentials for the 1979 GMC K3500 range from $1.89 up to $1,455.00 for the most premium parts.

What is the average price of a Differential for a 1979 GMC K3500?

The average price for Differentials for the 1979 GMC K3500 is $274.30. 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 K3500 model years?

Yes, we carry Differentials for 18 model years of GMC K3500s between 1980 and 1999. The following model years are the most popular for Differential purchases: 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, and 1991.

What are the cheapest Differentials for my 1979 GMC K3500?

The cheapest 1979 GMC K3500 Differentials we carry are:

Differential Ring Gear Bolt (10282457) – $1.89
Differential Cover Bolt (50333283) – $2.99
Dana 44 JK / 60 / 70U Pinion Nut Washer Replacement (11643194) – $3.99
Replacement Ring Gear Bolt For Dana 60, 70, 70U & 70HD, 1/2" X 18 (11643357) – $4.99
Side Gear Thrust Washer for Dana 60, 70 & 80 (11642996) – $4.99

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 K3500?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1979 GMC K3500:

Can I get help with 1979 GMC K3500 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 K3500 Differentials?

Advance Auto Parts keeps returns simple. For new GMC K3500 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1979 GMC K3500 Differentials

Yukon Gear – 9.25" Chrysler, Dana 60 Semi-Float X/P Bolt, 80 & Up, 5/16" Head, Tapered (Part No.33238)

Yukon Gear – Standard Open Spider Gear Kit for GM 10.5" and 14T with 30 Spline Axles (Part No.16044)

National – Tapered Roller Bearing Cone (Part No.JLM506849A)

Yukon Gear – GM 10.5′ 14 Bolt Truck Cover Gasket (Part No.23016)

Yukon Gear – Replacement Baffle for Dana 70 & 70HD (Part No.33003)

Yukon Gear – Right Hand Adjuster Lock For 9.25" GM IFS (Part No.33360)

Motive Gear – Differential Ring and Pinion (Part No.D60-410)

National – Bearing Race (Part No.HM803110)

Yukon Gear – Replacement Cover Gasket For Dana 50, Dana 60 & Dana 70 (Part No.23007)

Yukon Gear – Differential (Part No.26039)

USA Standard Gear – Differential Spider Gear Kits (Part No.39011)

Yukon Gear – Bearing Race Driver for Dana 60/70, Chrysler 8.75, GM 10.25" Differentials (Part No.56011)

Yukon Gear – Master Overhaul Kit for Dana 70-U Differential (Part No.14040)

National – Tapered Roller Bearing Cone (Part No.HM88542)

Yukon Gear – Seal Housing for Dana 60, Zip Locker, with O-Rings (Part No.34039)

Yukon Gear – Differential Cover B (Part No.33572)

Yukon Gear – High Performance Replacement Ring & Pinion Gear Set For Dana 60 In A 3.54 Ratio (Part No.24058)

Yukon Gear – Replacement Cross Pin Shaft for Dana 60, Fits Standard Open and Trac Loc Posi (Part No.33314)

Yukon Gear – Set Up Bearing (Part No.56039)

Yukon Gear – Differential (Part No.26047)

Yukon Gear – Dana 60 & Dana 70 Power Lok Case Bolt (Part No.33236)

Yukon Gear – Steel Spool for Dana 60 with 35 Spline Axles, 4.10 & Down (Part No.32042)

Yukon Gear – Chrysler 9.25" and Dana 44 / 60 Tracloc Clutch Guide Replacement (Part No.33249)

Yukon Gear – Dana 70 & Dana 80 Pinion Gear Thrust Washer (Part No.33288)

Yukon Gear – Replacement Carrier Shim Kit for Dana 70 & 70HD (Part No.55019)

Motive Gear – Differential Pinion Shim Kit (Part No.1102)

Felpro – Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55063)

Motive Gear – Differential Gear Install Kit (Part No.GM10.5IK-2)

Yukon Gear – GM 10.5′ 14 Bolt Truck Cover Gasket (Part No.23016)

Spicer – Performance Differential Gasket – Dana 70 (Part No.RD51998)

Spicer – Performance Differential Gasket – Gm 10.5 Axle – 14 Bolt (Part No.RD51995)

Victor Reinz – Differential Cover Gasket (Part No.71-14868-00)

National – Tapered Roller Bearing Cone (Part No.387AS)

National – Tapered Roller Bearing Cone (Part No.469)

National – Bearing Race (Part No.382S)

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

Schaeffler – Cup (Part No.382A)

Schaeffler – Wheel Balancer Cone (Part No.KLM104949)

Schaeffler – Cup (Part No.LM104911)

Felpro – Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55063)

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)

Yukon Gear – Steel Cover for Dana 70 (Part No.32322)

Yukon Gear – Steel Cover for GM 10.5" 14 Bolt Truck (Part No.32345)

Yukon Gear – Chrome Cover for 10.5" GM 14 Bolt Truck (Part No.32013)

Yukon Gear – Steel Cover for Dana 60 Standard Rotation (Part No.32321)

Yukon Gear – Standard Rotation Dana 60 Chrome Differential Cover (Part No.32005)