1984 GMC C2500 Differentials

Name: 8.2" & 8.5" Rear Cover Gasket
Brand: Yukon Gear
SKU: 23020
Price: 10.99 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1984 GMC C2500 in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1984 GMC C2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearings, Differential Covers, and Rear Differential 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, Driveworks, and Felpro. For example, National Differentials start at just $18.99 with an average 4.3 star rating. Driveworks and Felpro offer similar pricing and quality, backed by strong customer feedback. With over 4,200 reviews and a solid 4 star average, you can shop with confidence knowing other GMC C2500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1984 GMC C2500 Differential at Advance Auto Parts is around $213.27, with a range that starts at $2.99 and goes up to $1,141.99. With 171 options in stock from 14 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket, Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket, and 3 Qt – 80W90 Conventional Gear Oil with Posi Additive 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 Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1984 GMC C2500 in peak condition, inside and out.

Looking for the perfect Differential for your 1984 GMC C2500? 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 C2500. Whether you’re driving a 1984 model or another popular model year like 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, and 2000, 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 1984 GMC C2500 Differentials

from

$10.99

8.2″ & 8.5″ rear cover gasket.

Product Features:

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

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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$219.99

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

Product Features:

Fits M88010 race
For accurate installation of bearing races
All-steel construction

from

$152.99

This axle shaft is designed to match the performance of the original equipment shaft on specified vehicle makes, models and years. When a factory axle shaft fails or is damaged by rust or collision, this replacement is engineered to help restore and ensure the proper transfer of torque and rotational power from the differential or transmission to the wheel.

Product Features:

Direct replacement – this axle shaft is designed to match the performance of the original equipment shaft on specified vehicle makes, models and years
Ideal solution – when a factory axle shaft fails, this replacement is engineered to help ensure proper transfer of torque and rotational power from the differential or transmission to the wheels
Durable construction – designed and manufactured to strict specifications for reliable performance
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

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

from

$13.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$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

from

$187.99

Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

Product Features:

KIT BRG & SEAL GM MASTER 9.5 98 & LATER

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$44.99

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

from

$25.99

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

$649.99

The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. Give your vehicle great traction and save some cash. Choose a Spartan Locker for better traction. The Spartan locker by USA standard gear is a mechanical locker that replaces the spiders in a standard case. The Spartan locker’s design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap! The couplers and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a Limited warranty against defect.

Product Features:

Fits GM 18.5″ with 30 spline axles
Made from 9310 steel for added strength
Replaces the spiders in a standard carrier case

from

$7.99

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

from

$449.99

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 1998 and up GM 10.5″ 14 bolt truck
Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.

from

$115.99

Product Features:

GM8.6″ INTERNAL KIT (OPEN) 30 SPL.

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$15.99

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 8.5″

from

$929.99

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. This unit has larger bearing journals for added strength & uses heavy-duty carrier bearings & races.

Product Features:

Fits GM 8.5″ and 8.6″ with 30 spline axles
2.73 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

from

$5.99

from

$49.99

Cross pin shaft for GM 8.5″ and 8.6″
Fits standard open differentials only
0.795″ diameter

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

from

$404.99

Yukon Gear & Axle clutch kits fit popular GM diffs outfitted with a Yukon Dura Grip positraction unit feature 14 advanced carbon 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
14 piece kit
Carbon fiber clutches

from

$261.99

Product Features:

GM 14BL 9.5 R/P 3.42 MG

from

$24.49

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

Product Features:

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

from

$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

from

$12.99

GM 9.5″ ring gear bolt. 12mm x 1.5.

Product Features:

Ring gear bolt for GM 9.2″
12mm x 1.5

from

$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

from

$9.99

Product Features:

KIT SHIM PINION

from

$46.99

This direct replacement differential cover matches the fit and function of the original equipment diff cover for a reliable, leak-free repair. It features a durable design, made to strict specifications, to help ensure reliable service life.

Product Features:

Direct replacement – this differential cover matches the fit and function of the original equipment diff cover on select vehicles
Reliable repair – the smart solution for fixing an existing cover that’s rusted, damaged or leaking differential fluid
Durable construction – this differential cover is made according to strict engineering standards to help ensure dependability
Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience

from

$48.99

Pinion nut for GM 10.5″ 14 bolt truck
15/16″ x 16 thread
1.5″ socket

Popular 1984 GMC C2500 Differentials Categories

Differential Oil

Rear Differential Cover Gaskets

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Axle Shafts

Differential Pinion Pilot Bearings

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 Lock Assemblies

Rear Differential Pinion Bearings

Differential Spools

Differential Carrier Bearings

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 Gear Thrust Washers

Differential Drive Pinion Gear Bearing Retainer Bolts

Differential Carrier Bearing Set

Axle Differential Bearing and Race Set

Most Popular Differential Bearings for 1984 GMC C2500s

Enhance your 1984 GMC C2500 with one of the 9 Differential Bearings we have in stock, starting at just $10.99.

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from

$10.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

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

$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

from

$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

$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

from

$23.99

Cross pin bolt
Fits GM 9.5″ and 9.25″ IFS

from

$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

Best-Selling 1984 GMC C2500 Differential Covers

Upgrade your C2500 with one of our 4 best-selling Differential Covers.

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from

$93.99

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

Product Features:

Fits GM 9.5″
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

$72.99

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 9.5″
Chrome

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

Top-Quality Rear Differential Cover Gaskets for 1984 GMC C2500s

Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for GMC C2500s and enjoy top-notch performance from $3.99.

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from

$13.99

9.5″ GM cover gasket.

Product Features:

Cover gasket
Fits GM 9.5″

from

$13.99

14T cover gasket.

Product Features:

Cover gasket
Fits GM 10.5″ 14 bolt truck

Performance Differential Gasket - Gm 10.5 Axle - 14 Bolt

from

$34.99

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.

from

$3.99

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

Product Features:

Meets or exceeds OE specifications

Top Picks for 1984 GMC C2500 Rear Housing Cover Gaskets

Invest in one of our 3 durable Rear Housing Cover Gaskets for your 1984 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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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

$8.99

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

$7.99

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-Rated Differential Oil for 1984 GMC C2500s

Make a smart move for your 1984 GMC C2500 with products all priced from $12.49 to $148.99.

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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

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

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

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

from

$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

Top-Rated Differential Brands For Your 1984 GMC C2500

When it comes to finding the perfect Differential for your 1984 GMC C2500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 14 trusted brands. We carry the most popular Differential brands including Felpro, National, and Driveworks, and more, all known for their exceptional customer ratings (average brand rating of 4.6 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 1984 GMC C2500, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 1984 GMC C2500 Differentials

If you’re looking for a top-quality Differential for your 1984 GMC C2500, 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 $8.29 and an average cost of $8.64, you’ll find the perfect Differential for your needs and budget. Felpro Differentials for the 1984 GMC C2500 come highly rated, with over 33 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 $8.29

(13)

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket

“works good”

from $8.99

(20)

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket

“Perfect fit”

Top-Quality National 1984 GMC C2500 Differentials

For those in search of a high-quality Differential for their 1984 GMC C2500, 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 $18.99, with an average price of $22.49, giving you a range of options to suit your budget. Backed by over 9 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 $18.99

(1)

Multi-Purpose Seal

“Fit my 1996 Chevrolet pinion housing perfectly. No leaks.”

from $24.49

(1)

Multi Purpose Seal

“Fits right the first time… No more leaks…”

from $23.99

(7)

Tapered Roller Bearing Cone

“Good bearings ,fit my rear hubs on 02 Chevy k 2500hd perfectly .I have used these bearings and seals many times over the years. They come with a 3 yea”

FAQs for 1984 GMC C2500 Differentials

What are the best-selling Differentials for 1984 GMC C2500s?

Out of 171 Differentials that fit 1984 GMC C2500s, the following parts are the top sellers:

Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (5723531) – $8.29
Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (3215601) – $8.99
3 Qt – 80W90 Conventional Gear Oil with Posi Additive (11645418) – $57.99

What’s the price range for 1984 GMC C2500 Differentials?

The prices of Differentials for the 1984 GMC C2500 range from $2.99 up to $1,141.99 for the most premium parts.

What is the average price of a Differential for a 1984 GMC C2500?

The average price for Differentials for the 1984 GMC C2500 is $213.27. 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 C2500 model years?

Yes, we carry Differentials for 19 model years of GMC C2500s between 1979 and 2000. The following model years are the most popular for Differential purchases: 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, and 1992.

What are the cheapest Differentials for my 1984 GMC C2500?

The cheapest 1984 GMC C2500 Differentials we carry are:

Differential Crush Sleeve (20520169) – $2.99
Differential Cover Gasket (10282461) – $3.99
Differential Crush Sleeve (10593146) – $3.99
14T GM Pinion Support Bolt, 7/16-14" Long (12018054) – $5.99
Differential Shaft Lock Bolt (5707714) – $6.79

Does Advance Auto Parts sell Differentials for any other 1984 GMC models?

Yes. We stock Differentials for 20 other popular 1984 GMC models. Some of the most popular are 1984 Jimmy Differentials, 1984 K2500 Differentials, 1984 K1500 Differentials, 1984 C1500 Differentials, and 1984 K3500 Differentials.

What types of Differentials do you sell for my 1984 GMC C2500?

As of 6/2/26, these are some of the most in-demand types of Differentials for a 1984 GMC C2500:

Can I get help with 1984 GMC C2500 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 C2500 Differentials?

Advance Auto Parts keeps returns simple. For new GMC C2500 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1984 GMC C2500 Differentials

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

Powertrax – Differential Lock Assembly (Part No.9207883005)

Yukon Gear – Bearing Race Driver for Popular Ford, Gm, Amc, Chrysler, and Dana Diffs (Part No.56023)

Dorman – Rear Axle Shaft, Left Or Right (Part No.630-137A)

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

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

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

Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R9.5GRLMK)

National – Multi-Purpose Bearing (Part No.A-42)

National – Tapered Roller Bearing Cone (Part No.M802048)

USA Standard Gear – Differential Open Unit/Component (Part No.17041)

Victor Reinz – Axle Housing Cover Gasket (Part No.71-14834-00)

Yukon Gear – Pinion Install Kit for ’99 & Newer 10.5" GM 14 Bolt Truck Differential (Part No.13106)

Motive Gear – Differential Internal Carrier Gear Kit (Part No.GM8.6BI)

Yukon Gear – Standard Open Side Gear Thrust Washer for 8.5" GM (Part No.33304)

Yukon Gear – Dura Grip Positraction For GM 8.5" & 8.6" With 30 Spline Axles (Part No.26016)

Yukon Gear – 14T GM Pinion Support Bolt, 7/16-14" Long (Part No.33582)

Yukon Gear – Standard Open Cross Pin (0.795" Diameter) for 8.5" GM – Some Eaton Positractions (Part No.33401)

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

Yukon Gear – 14 Plate Carbon Clutches, GM 8.2"/GM 8.5"/12T/12P/Ford 8.8"/Cast Iron Vette (Part No.16041)

Motive Gear – Differential Ring and Pinion (Part No.GM9.5-342)

National – Multi Purpose Seal (Part No.2286)

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

Yukon Gear – GM 9.5" Ring Gear Bolt (Part No.33047)

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

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

Dorman – Differential Cover (Part No.697-703)

Yukon Gear – 10.5" GM 14 Bolt Truck Pinion Nut (Part No.33148)

Driveworks – Taper Bearing Cone (Part No.S-LM-501349)

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

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

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

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

Yukon Gear – Standard Open and Gov-Loc Cross Pin Bolt, M10X1.5 Thread for 9.5" & 9.25" GM IFS (Part No.33342)

Schaeffler – Cup (Part No.382A)

Schaeffler – Wheel Balancer Cone (Part No.KLM104949)

Schaeffler – Cup (Part No.LM104911)

Yukon Gear – Steel Cover for GM 9.5", Threaded for Fill Plug, Plug Not Included (Part No.32333)

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

Yukon Gear – Chrome Cover for 9.5" GM (Part No.32018)

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

Yukon Gear – 9.5" GM Cover Gasket (Part No.23023)

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

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

Pro-King – Differential Cover Gasket (Part No.743B303)

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

Felpro – Axle Housing Cover Gasket: Irregular Shaped 14 Bolt Hole Gasket (Part No.RDS 55387)

Victor Reinz – Axle Housing Cover Gasket (Part No.71-14834-00)

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)