1991 GMC K2500 Differentials

Find your specific 1991 GMC K2500 original or aftermarket Differentials below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.

Essential 1991 GMC K2500 Differentials

from

$182.99

RngPnnInstlKt

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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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$9.99

5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

Product Features:

Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
1/2″ head

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$5.99

This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

Direct replacement – this differential pinion shaft lock bolt matches the fit and function of the factory part on specified years, makes and models.
Ideal solution – this bolt is a reliable replacement for an original part that is missing or has failed due to fatigue
Durable construction – this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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$859.99

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″ with 28 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

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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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$319.99

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, pinion nut, 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 GM 9.25″ IFS
Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.

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$92.99

Product Features:

Fits GM 10.5″ 14 bolt truck
Steel

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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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$9.49

Product Features:

KIT SHIM PINION

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$12.99

Product Features:

Cover gasket
Fits Dana Spicer 44

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$8.99

Standard open side gear thrust washer for 9.5″ GM.

Product Features:

Side gear thrust washer
Fits GM 9.5″

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$17.99

Product Features:

NUT PINION – 14 BOLT

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$2.49

Product Features:

RING GEAR BOLT 8.5″ 7.5″ 7/16 X 20 LEFT HAND

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$65.99

Product Features:

MINI INSTALL KIT GM 8.5 REAR

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$591.99

For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.

Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.

Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.

Powertrax® = Extreme Traction Systems!

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$32.99

Standard open and Gov-Loc cross pin for 9.5″ GM.

Product Features:

Cross pin shaft
Fits GM 9.5″

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$19.99

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

$5.29

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.

from

$98.99

Left hand carrier bearing adjuster for 9.25″ GM IFS.

Product Features:

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

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$266.99

Product Features:

GM10.5″ INTERNAL KIT (OPEN) 30 SPL

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$12.99

Product Features:

CRUSH SLEEVE 14 BOLT 10.5 (3124) 1989 UP MIN ORDER 1000

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$194.99

Mini Spool for Dana 44 with 30 spline axles. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier and give 100% power to both tires at all times. These units are not recommended for street-driven vehicles. We recommend full spools for vehicles with large tires or high horsepower. These units come with a one year warranty against manufacturing defects.

Product Features:

Fits Dana Spicer 44 with 30 spline axles
Installs into a standard open carrier case
Provides 100% traction to both wheels at all times
Not recommended for street driven vehicles

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$32.99

Adjuster lock bolt for left hand case half of 7.2″ and 9.25″ GM IFS.

Product Features:

Side adjuster lock bolt
Fits GM 7.2″ IFS and 9.25″ IFS

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$59.99

Product Features:

Super carrier shim kit for Ford 7.5″, GM 7.5″, 7.625″, 7.6″ IFS, 7.6″ IRS, 7.75″, 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and GM 8.5″ front and rear
Interlocking design makes installation much easier

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$229.99

Yukon 4340 Chrome-Moly right hand inner axle for ’79-’87 GM 8.5″ Blazer and truck with a length of 19.51″ and 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. 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:

Fits 1979-1987 GM half ton front with GM 8.5″
4340 Chromoly
Right hand side inner
28 spline
19.15″ from end of splines to center of u-joint bore

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$207.99

The Motive Gear replacement axle shaft offers an OE-quality axle shaft at a fraction of the OE cost. Manufactured from 1541H material on high-tolerance CNC equipment, this axle shaft is designed to provide a perfect fit every time.

Product Features:

GM 10BL 8.5 AXLE RIGHT SIDE, 77-87 1/2 & 3/4 TON

Popular 1991 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

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 Spools

Differential Carrier Bearings

Differential Carrier Bearing Adjusters

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 Pinion Gear Washers

Differential Ring and Pinion Kits

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Differential Bearing Adjuster Nut Lock Bolts

Maybe you’re in the middle of a full rebuild of that 1991 GMC K2500. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 313 different Differentials in our inventory ranging from $2.49 to $2,324.99. That means you can find the exact parts or products you need to keep that 1991 GMC K2500 running smoothly.

Differentials are only as good as their brand. We stock 16 different brands to make sure you have plenty of trusted parts to choose from for your 1991 GMC K2500. Valvoline, Driveworks, and FELPRO are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Differentials for your 1991 GMC K2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,792 reviews in this category, some of the top rated parts include Differential Cover Gasket with 4.3 stars and Differential Cover Gasket with 4.4 stars.

So if you’re in the market for aftermarket Differentials to keep your 1991 GMC K2500 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Differentials Brands To Make Your 1991 GMC K2500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1991 GMC K2500 demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your K2500 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Spectre Differentials

We carry Spectre parts in our stock across Differential Covers categories, plus more. For a 1991 GMC K2500, our most popular Spectre Differentials include:

from $59.99

(1)

Differential Cover

Differential Covers

Top 1991 GMC K2500 Differentials from Dorman

Dorman products are another trusted brand when it comes to Differentials for your 1991 GMC K2500. Popular Dorman parts include:

from $36.99

(15)

Rear Differential Cover

Differential Covers

from $55.99

(11)

Rear Differential Cover

Differential Covers

from $5.99

(11)

Differential Shaft Lock Bolt

Differential Pinion Shaft Lock Bolts

FAQs for 1991 GMC K2500 Differentials

What are the most purchased Differentials for the 1991 GMC K2500?

Out of 313 Differentials for the 1991 GMC K2500, the most popular in our inventory are:

from $14.49

(2)

DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

Differential Oil

from $35.99

(17)

DEX/MERC Automatic Transmission Fluid, 1 Gallon

Differential Oil

from $13.99

(14)

Tapered Cone/Cup Wheel Bearing Set

Front Differential Pinion Bearings

What are the top-rated 1991 GMC K2500 Differentials?

Top-rated Differentials for your 1991 GMC K2500 based on customer reviews/ratings are:

from $7.99

(20)

Differential Cover Gasket

“Perfect fit”

from $6.79

(13)

Differential Cover Gasket

“I will only use Fel-Pro for major components”

from $23.99

(7)

Bearings

“Good price”

1991 GMC K2500 Differentials

More 1991 GMC K2500 Differentials

Essential 1991 GMC K2500 Differentials

Richmond Gear – RngPnnInstlKt (Part No.83-1021-1)

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

Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

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

Yukon Gear – Dura Grip Positraction For GM 8.5" With 28 Spline Axles (Part No.26015)

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

Yukon Gear – Pinion Install Kit For GM 9.25" Differential (Part No.13074)

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

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

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

Yukon Gear – Dana 44 Cover Gasket Replacement (Part No.23006)

Yukon Gear – Standard Open Side Gear And Thrust Washer For 9.5" GM (Part No.33303)

Motive Gear – Differential Pinion Nut (Part No.15994582)

Motive Gear – Ring Gear Bolt (Part No.14066913)

Motive Gear – Differential Gear Install Kit (Part No.GM8.5IK)

Powertrax – No-Slip Traction System (Part No.9207053000)

Yukon Gear – Standard Open And Gov-Loc Cross Pin For 9.5" GM (Part No.33402)

Pro-King – Shim Kit (Part No.741A200)

Pro-King – Axle Seal (Part No.714D076)

Pro-King – Differential Pinion Yoke Washer (Part No.742A215)

Yukon Gear – Left Hand Carrier Bearing Adjuster For 9.25" GM IFS (Part No.33362)

Motive Gear – Differential Carrier Gear Kit (Part No.GM14BI)

Motive Gear – Differential Crush Sleeve (Part No.26008741)

Yukon Gear – Mini Spool For Dana Spicer 44 With 30 Spline Axles (Part No.32055)

Yukon Gear – Adjuster Lock Bolt For Left Hand Case Half Of 7.2" And 9.25" GM IFS (Part No.33244)

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

Yukon Gear – 4340 Chrome-Moly Right Hand Inner Axle For ’79-’87 GM 8.5" Blazer And Truck, Uses 5-760X U/J (Part No.21365)

Motive Gear – Axle Shaft (Part No.GM10FAXR)

Popular 1991 GMC K2500 Differentials Categories