1985 GMC K2500 Differentials

Keep Your 1985 GMC K2500 in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1985 GMC K2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearings, Differential Oil, 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, Motive Gear, and DriveWorks. For example, National Differentials start at just $7.99 with an average 4.3 star rating. Motive Gear and DriveWorks offer similar pricing and quality, backed by strong customer feedback. With over 2,094 reviews and a solid 4 star average, you can shop with confidence knowing other GMC K2500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1985 GMC K2500 Differential at Advance Auto Parts is around $234.82, with a range that starts at $2.59 and goes up to $1,355.00. With 311 options in stock from 13 trusted brands, finding the right fit is easy. Popular picks like DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, Tapered Cone/Cup Wheel Bearing Set, and Differential Shaft Lock Bolt start at just $6.79 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 1985 GMC K2500 in peak condition, inside and out.

Looking for the perfect Differential for your 1985 GMC K2500? 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 K2500. Whether you’re driving a 1985 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 1985 GMC K2500 Differentials

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$215.99

Bearing race driver. No return.

Product Features:

Bearing race driver
Fits HM903210 race
All steel construction

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$28.49

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

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$221.99

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

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$271.99

Differential

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$18.99

Product Features:

Bulkhead quit connect fitting

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$38.99

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

Product Features:

Designed to repair damaged, grooved or worn shafts
Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
Easy to install with removable flange and installation tool
Installation tool reduces sleeve distortion and allows for installation without removal from the shaft

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$15.99

Standard open side gear thrust washer for 8.5″ GM.

Product Features:

Side gear thrust washer
Fits GM 8.5″

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$6.99

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 t

Product Features:

Pinion nut for Dana Spicer 25, 27, 30, 44, 50 and GM 7.75″
3/4″ x 16 thread

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$5.99

Pinion gear thrust washer for 8.25″ GM IFS.

Product Features:

Pinion gear thrust washer
Fits GM 8.25″ IFS

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$20.49

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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$41.99

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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$29.99

9.5″ GM differential carrier Supershim kit.

Product Features:

Super carrier shim kit for GM 9.5″
Interlocking design makes installation much easier

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$16.99

ZIP locker switch.

Product Features:

Switch

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$12.99

Dana 30 & Dana 44 roll PIN, 0.235″ DIA, for cross pin shaft.

Product Features:

Roll pin for Dana Spicer 30 and Dana Spicer 44
0.235″ diameter

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$188.99

Product Features:

DANA-44 R/P 5.13 STD MG

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$1.99

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

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$309.99

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

Product Features:

Fits 1989-1997 GM 10.5″ 14 bolt truck
Uses Koyo bearings and races
Included are carrier bearings and races, pinion bearings and races, pilot bearing, pinion seal, complete shim kit, pinion nut, crush sleeve, thread locker, marking compound with brush and gasket.

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$83.99

Replacement front axle inner seal redi-sleeve for Dana 44 & 8.5″ GM.Yukon Mighty seal.

Product Features:

Axle Redi-sleeve
Fits Dana Spicer 44

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$5.99

Differential Cover B

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$349.99

Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

Product Features:

Fits 1988 and down 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.

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$149.99

Yukon replacement standard open carrier case for Dana 44, 3.92 & up, 2-3/8″ tall.

Product Features:

Standard open carrier case
Fits Dana Spicer 44 with 30 spline axles
3.92 and up ratio only
Does not include spider gears

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$954.99

Yukon front 4340 Chrome-Moly replacement axle kit for ’79-’87 GM 8.5″ 1/2 ton truck and Blazer with 28 splines. Yukon 4340 Chrome-Moly axles provide up to 50% increased strength over stock axles for use in extreme performance applications with large tires and high horsepower. Yukon’s 4340 axles are manufactured using the latest technologies and the highest quality materials to ensure high strength and long life. This kit comes with inner & outer axles for both left and right sides along with Dana U/joint. Limited Lifetime warranty covers manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. “No Questions Asked” replacement for first warranty return, however Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through Randy’s ring & pinion) makes final determination on warranty considerations.

Product Features:

Front axle kit
Fits 1979-1987 GM half ton front with GM 8.5″
4340 Chromoly axles
28 spline inner axles
Includes inner and outer axle shafts with Spicer u-joints

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$3.99

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

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$8.99

Product Features:

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

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$362.99

Eaton-type 14 plate Carbon clutch set for 9.5″ GM and 9.75″ Ford.

Product Features:

Clutch kit
Fits GM 9.5″ with Eaton positraction
Carbon fiber clutches

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$5.99

DiffrlPinSupportBolt

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$7.99

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

Product Features:

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

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$57.99

Product Features:

Crush sleeve eliminator kit for GM 8.5″, 8.6″ and Chrysler 9.25″ rear

Popular 1985 GMC K2500 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 Pinion Supports

Differential Lock Assemblies

Rear Differential Pinion Bearings

Differential Spools

Differential Carrier Bearings

Front Differential Cover Gaskets

Rear Housing Cover Gaskets

Differential Pinion Bearing Kits

Differential Seals

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

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Differential Clutch Pack Clips

Axle Differential Bearing and Race Set

Most Popular Differential Bearings for 1985 GMC K2500s

Enhance your 1985 GMC K2500 with one of the 14 Differential Bearings we have in stock, starting at just $6.99.

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$10.99

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

$9.29

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

Product Features:

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

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$26.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

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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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$11.99

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

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$18.49

Value-priced bearing meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$19.99

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

$8.49

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

$38.99

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

$24.29

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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$23.99

Product Features:

Cross pin bolt
Fits GM 9.5″ and 9.25″ IFS

from

$11.29

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

from

$9.99

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

from

$6.99

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

Product Features:

Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 botl car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS

Best-Selling 1985 GMC K2500 Differential Oil

Upgrade your K2500 with one of our 5 best-selling Differential Oil, earning an average 5 stars rating across 2 reviews.

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$14.49

Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

Product Features:

Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
Enhanced anti-shudder protection for smooth shifting and maximum power transfer
Developed with anti-wear technology to help improve transmission durability
Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures

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$11.99

Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:

Formulated with premium base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
Enhanced anti-shudder protection for smooth shifting and maximum power transfer
Developed with anti-wear technology to help improve transmission durability
Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures

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$148.99

Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

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$99.99

Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:

Includes three quarts of Redline Shockproof oil

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$137.99

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil

Top-Quality Rear Differential Cover Gaskets for 1985 GMC K2500s

Choose a high-quality OEM or aftermarket Rear Differential Cover Gasket for GMC K2500s and enjoy top-notch performance from $3.99.

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from

$13.99

14T cover gasket.

Product Features:

Cover gasket
Fits GM 10.5″ 14 bolt truck

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$13.99

9.5″ GM cover gasket.

Product Features:

Cover gasket
Fits GM 9.5″

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$3.99

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

from

$3.99

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

Top Picks for 1985 GMC K2500 Rear Housing Cover Gaskets

Invest in one of our 2 durable Rear Housing Cover Gaskets for your 1985 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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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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$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

Differential Covers for 1985 GMC K2500s

Make a smart move for your 1985 GMC K2500 with products all priced from $44.99 to $296.99.

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$93.99

Steel cover for GM 9.5″ Threaded for fill plug, fill plug not included.

Product Features:

Fits GM 9.5″
Steel

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$44.99

Chrome cover for 8.5″ GM front.

Product Features:

Fits GM 8.5″ front
Chrome

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$92.99

Product Features:

Fits GM 10.5″ 14 bolt truck
Steel

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$72.99

Product Features:

Fits GM 9.5″
Chrome

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$59.99

Chrome cover for GM 14T.

Product Features:

Fits GM 10.5″ 14 bolt truck
Chrome

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$296.99

Polished aluminum cover for 8.5″ GM.

Product Features:

Fits GM 8.5″ front
Finned polished aluminum

Top-Rated Differential Brands For Your 1985 GMC K2500

When it comes to finding the perfect Differential for your 1985 GMC K2500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 13 trusted brands. We carry the most popular Differential brands including National, DriveWorks, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.3 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 1985 GMC K2500, providing peace of mind with parts that meet or exceed OEM standards.

Popular National 1985 GMC K2500 Differentials

If you’re looking for a top-quality Differential for your 1985 GMC K2500, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 3 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.99 and an average cost of $9.42, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1985 GMC K2500 come highly rated, with over 12 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $9.29

(2)

Bearing Race

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

from $10.99

(6)

Bearing Race

“Fit perfectly. No difficulty replacing my old ones.”

from $7.99

(4)

Bearing Race

“Goes with M88010 bearing cup. Application was the pinion bearing race for a Ford 9 Inch on a 1957 Ford F-100.”

Top-Quality DriveWorks 1985 GMC K2500 Differentials

For those in search of a high-quality Differential for their 1985 GMC K2500, Advance Auto Parts offers a great selection of DriveWorks Differentials. With 3 DriveWorks 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 $7.99, with an average price of $15.66, giving you a range of options to suit your budget. Backed by over 16 customer ratings and an average rating of 4.3 stars, DriveWorks Differentials provide both reliability and excellent performance. Choosing a DriveWorks Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $26.99

(14)

Tapered Cone/Cup Wheel Bearing Set

“Advance Auto website when entering my 1989 Ford F150 doesn’t ask if it is 2 wheel or 4 wheel drive. So I had to return the first set”

from $7.99

(1)

Oil Seal

“Didn’t fit my 1992 K1500 10 bolt 8.5″ ring gear rear end. Was told wrong part.”

from $11.99

(1)

Taper Bearing Cone

“Part fit perfectly. Just have to see how long it lasts”

FAQs for 1985 GMC K2500 Differentials

What are the best-selling Differentials for 1985 GMC K2500s?

Out of 311 Differentials that fit 1985 GMC K2500s, the following parts are the top sellers:

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (12079139) – $11.99
Tapered Cone/Cup Wheel Bearing Set (5050723) – $26.99
Differential Shaft Lock Bolt (5707714) – $6.79

What’s the price range for 1985 GMC K2500 Differentials?

The prices of Differentials for the 1985 GMC K2500 range from $2.59 up to $1,355.00 for the most premium parts.

What is the average price of a Differential for a 1985 GMC K2500?

The average price for Differentials for the 1985 GMC K2500 is $234.82. 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 K2500 model years?

Yes, we carry Differentials for 18 model years of GMC K2500s between 1979 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 1985 GMC K2500?

The cheapest 1985 GMC K2500 Differentials we carry are:

Differential Pinion Gear Washer (10282533) – $2.59
Ring Gear Bolt (20520168) – $2.99
Differential Crush Sleeve (20520169) – $2.99
Differential Cross Shaft (10282201) – $2.99
Differential Ring Gear Bolt (10282159) – $2.99

Does Advance Auto Parts sell Differentials for any other 1985 GMC models?

Yes. We stock Differentials for 20 other popular 1985 GMC models. Some of the most popular are 1985 Jimmy Differentials, 1985 C2500 Differentials, 1985 K1500 Differentials, 1985 C1500 Differentials, and 1985 K3500 Differentials.

What are the top-rated Differentials that fit the 1985 GMC K2500?

The one 1985 GMC K2500 Differential we have in stock is the Differential Pinion Gear Washer. It costs $2.59.

What types of Differentials do you sell for my 1985 GMC K2500?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 1985 GMC K2500:

Can I get help with 1985 GMC K2500 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 K2500 Differentials?

Advance Auto Parts keeps returns simple. For new GMC K2500 Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1985 GMC K2500 Differentials

Yukon Gear – Bearing Race Driver (Part No.56018)

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

Pro-King – Differential Internal Nest Kit (Part No.743B717)

Yukon Gear – Differential (Part No.29101)

Yukon Gear – Zip Locker Bulkhead Quick-Disconnect Fitting (Part No.34038)

National – Shaft Repair Sleeve (Part No.99155)

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

Yukon Gear – Replacement Pinion Nut For Dana 25, 27, 30, 36, 44, 53 & GM 7.75" (Part No.33143)

Yukon Gear – Pinion Gear And Thrust Washer For 8.25" GM IFS (Part No.33377)

National – Bearing Race (Part No.HM803110)

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

Yukon Gear – Super Carrier Shim Kit For GM 9.5" (Part No.55003)

Yukon Gear – Zip Locker Switch (Part No.34015)

Yukon Gear – Dana 30 / 44 Roll Pin Replacement (Part No.33312)

Motive Gear – Differential Ring and Pinion (Part No.D44-513)

Pro-King – Differential Ring Gear Bolt (Part No.742E935)

USA Standard Gear – Master Overhaul Kit for the GM 10.5" 14T Differential, ’89-’98 (Part No.37045)

Yukon Gear – Replacement Front Axle Inner Seal Redi-Sleeve For Dana 44 & 8.5" GM (Part No.30219)

Yukon Gear – Differential Cover B (Part No.33569)

Yukon Gear – Pinion Install Kit For ’88 And Older 10.5" GM 14 Bolt Truck Differential (Part No.13058)

Yukon Gear – Replacement Standard Open Carrier Case For Dana 44, 3.92 & Up (Part No.20028)

Yukon Gear – Front 4340 Chrome-Moly Replacement Axle Kit For ’79-’87 GM 8.5" 1/2 Ton Truck And Blazer (Part No.21325)

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

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

Yukon Gear – Eaton-Type 14 Plate Carbon Clutch Set For 9.5" GM And 9.75" Ford (Part No.16058)

Yukon Gear – DiffrlPinSupportBolt (Part No.33582)

Felpro – Axle Housing Cover Gasket Irregular Shaped 10 Bolt Hole Gasket (Part No.RDS 6629)

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

National – Bearing Race (Part No.382A)

National – Bearing Race (Part No.LM501314)

Driveworks – Tapered Cone/Cup Wheel Bearing Set (Part No.S-A-35)

National – Tapered Roller Bearing Cone (Part No.LM104949)

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

Driveworks – Tapered Cone Wheel Bearing Assembly (Part No.S-387-AS)

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

National – Bearing Race (Part No.LM501310)

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

FAG US – Cone (Part No.KM86649)

Yukon Gear – Standard Open And Gov-Loc Cross Pin Bolt With M10X1.5 Thread For 9.5" And 9.25" GM IFS (Part No.33342)

FAG US – Cup (Part No.M88010)

FAG US – Cup (Part No.LM501310)

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

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

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

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

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

Pro-King – Differential Cover Gasket (Part No.742G303)

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

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

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

Yukon Gear – Chrome Cover For 8.5" GM Front (Part No.32016)

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 – Polished Aluminum Cover For 8.5" GM (Part No.32029)