1991 GMC G2500 Differentials

Essential 1991 GMC G2500 Differentials

Yukon Gear – 8.5" & 8.2" GM Carrier Installation Kit (Part No.57008)

8.5" & 8.2" GM Carrier Installation Kit

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$109.99
Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for GM 8.2″ & 8.5″ differential. This kit contains carrier bearings, races and shims.

Product Features:
  • Fits GM 7.5″, 7.625″ 8.2″ and 8.5″
  • Includes carrier bearings and races and “super” carrier shim kit
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Yukon Gear – Ring Gear Bolt (Part No.33049)

Ring Gear Bolt

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$6.99
Ring gear bolt for GM 7.5″, 7.6″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ & 8.6″ IRS. 7/16″ x 20.

Product Features:
  • Ring gear bolt for GM 7.5″, 7.625″, 7.6″ IRS, 8.0″, 8.25″ IFS, 8.5″, 8.6″ and 8.6″ IRS
  • 7/16″ x 20
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Dorman – Rear Axle Shaft, Left or Right (Part No.630-129)

Rear Axle Shaft, Left or Right

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$281.99
Axle shaft damaged or bearings worn out? This axle shaft directly replaces the original equipment on certain vehicles, complete with all necessary application-specific installation components.

Product Features:
  • Direct replacement – this axle shaft replaces the original equipment on specific vehicle years, makes and models
  • Complete kit – each shaft includes critical installation hardware and components needed for specific vehicle applications
  • Durable construction – designed to rigorous standards and tested to ensure performance
  • Trustworthy solution – backed by team of engineers and quality control specialists in the United States
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Yukon Gear – Pinion Install Kit For GM 8.5" Differential (Part No.13069)

Pinion Install Kit For GM 8.5" Differential

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$173.99
Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & 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 8.5″ rear
  • Included are pinion bearings and races, pinion seal, crush sleeve , complete pinion shim kit, and marking compound with brush.
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Motive Gear – Differential Pinion Seal (Part No.2043)

Differential Pinion Seal

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$3.49
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o
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Richmond Gear – RngPnnInstlKt (Part No.83-1018-M)

RngPnnInstlKt

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$224.99
RngPnnInstlKt

Motive Gear – Differential Pinion Nut (Part No.3752901)

Differential Pinion Nut

from

$7.49
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o
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USA Standard Gear – Spartan Locker For GM 8.5" With 30 Spline Axles, Includes Heavy-Duty Cross Pin Shaft (Part No.17041)

Spartan Locker For GM 8.5" With 30 Spline Axles, Includes Heavy-Duty Cross Pin Shaft

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$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 one year 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
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Yukon Gear – Set Up Bearing (Part No.56045)

Set Up Bearing

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$153.99
M802048 set-up bearing (one bearing). No return.

Product Features:
  • Set up bearing
  • Fits M802048 pinion bearing
  • Easily slips on and off pinion journal to allow for easier pinion depth adjustment
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Yukon Gear – Positraction Clutch Guide (Part No.33352)

Positraction Clutch Guide

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$8.99
Positraction clutch guide.

Product Features:
  • Clutch guide for Chrysler 9.25″, Dana Spicer 44, Dana Spicer 50, Ford 8.8″, GM 12 bolt passenger car, GM 8.2″, 8.5″ and 8.6″, 1963-1979 Corvette and Nissan Titan
  • Compatible with Dura Grip positractions only
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Dorman – Differential Yoke including Seal and Pinion Nut (Part No.697-500)

Differential Yoke including Seal and Pinion Nut

from

$139.99
Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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USA Standard Gear – Ring & Pinion "Thick" Gear Set For GM 12 Bolt Truck In A 4.11 Ratio (Part No.36178)

Ring & Pinion "Thick" Gear Set For GM 12 Bolt Truck In A 4.11 Ratio

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$334.99
USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.

Product Features:
  • Fits GM 12 bolt truck
  • 8.875″ ring gear diameter
  • 30 spline pinion
  • 12 ring gear bolts
  • 4.11 ratio
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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)

Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt

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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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ATP – DIFF COVER KIT (Part No.111101)

DIFF COVER KIT

from

$35.99
DIFF COVER KIT

Motive Gear – Differential Gear Install Kit (Part No.GM12IK)

Differential Gear Install Kit

from

$69.99


Product Features:
  • MINI INSTALL KIT GM 12BLT 8.875 TRUCK
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Driveworks – Tapered Cone/Cup Wheel Bearing Set (Part No.S-A-35)

Tapered Cone/Cup Wheel Bearing Set

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$13.99
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Powertrax – Grip PRO Traction System (Part No.GT436035)

Grip PRO Traction System

from

$596.99
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!
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Yukon Gear – Crush Sleeve Eliminator Kit For GM 12 Bolt Truck (Part No.55046)

Crush Sleeve Eliminator Kit For GM 12 Bolt Truck

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$47.99
12T solid crush sleeve replacement spacer, pinion preload.

Product Features:
  • Crush sleeve eliminator kit for GM 12 bolt truck
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Yukon Gear – Bearing Race Driver (Part No.56017)

Bearing Race Driver

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$215.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits HM89410 race
  • All steel construction
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Yukon Gear – 14 Plate Carbon Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16041)

14 Plate Carbon Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

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$404.99
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
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Yukon Gear – Redi Sleeve For GM 8.5", 9.5" & 8.2" Bop Yokes (Part No.30229)

Redi Sleeve For GM 8.5", 9.5" & 8.2" Bop Yokes

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$57.99
8.5, 9.5, & 8.2 Buick, Oldsmobile, Pontiac GM REDI sleeve yoke saver.Yukon Mighty seal.

Product Features:
  • Pinion Redi-sleeve
  • Fits GM 8.5″, 9.5″ and 8.2″ Buick, Oldsmobile and Pontiac
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Yukon Gear – Standard Open Side Gear Thrust Washer For 8.5" GM (Part No.33304)

Standard Open Side Gear Thrust Washer For 8.5" GM

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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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Yukon Gear – Chrome Moly Cross Pin Shaft For Mini-Spool For GM 12 Bolt Car And Truck (Part No.32236)

Chrome Moly Cross Pin Shaft For Mini-Spool For GM 12 Bolt Car And Truck

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$61.99
Chrome Moly cross pin shaft for Mini-Spool for GM 12P and 12T HD.

Product Features:
  • Hardened cross pin shaft
  • Fits GM 12 bolt passenger car and truck
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Yukon Gear – Positraction Shim Kit (18 Shims) For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16042)

Positraction Shim Kit (18 Shims) For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

from

$41.99
Product Features:
  • Shim kit
  • Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction
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Pro-King – Differential Cross Shaft (Part No.742G673)

Differential Cross Shaft

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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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Pro-King – Differential Cross Shaft (Part No.742G930)

Differential Cross Shaft

from

$2.79
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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Felpro – Differential Cover Gasket (Part No.RDS 55028-1)

Differential Cover Gasket

from

$9.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • 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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USA Standard Gear – Master Overhaul Kit for the GM 8.5 Differential (Part No.37055)

Master Overhaul Kit for the GM 8.5 Differential

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$206.99
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 GM 8.5″ rear
  • 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, thread locker, marking compound with brush and gasket.
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1991 GMC G2500 Differentials

Maybe you’re in the middle of a full rebuild of that 1991 GMC G2500. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 194 different Differentials in our inventory ranging from $1.99 to $1,153.99. That means you can find the exact parts or products you need to keep that 1991 GMC G2500 running smoothly.

Differentials are only as good as their brand. We stock 14 different brands to make sure you have plenty of trusted parts to choose from for your 1991 GMC G2500. Valvoline, Felpro, and Dorman 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 G2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 6,024 reviews in this category, some of the top rated parts include Differential Ring And Pinion with 4.2 stars and Rear Differential Cover with 4.1 stars.

So if you’re in the market for aftermarket Differentials to keep your 1991 GMC G2500 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 G2500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1991 GMC G2500 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 G2500 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Powertrax Differentials

We carry Powertrax parts in our stock across Differential Open Unit and Components categories, plus more. For a 1991 GMC G2500, our most popular Powertrax Differentials include:
Grip LS Traction System
from $503.99
(1)
Grip LS Traction System
Differential Open Unit and Components

FAQs for 1991 GMC G2500 Differentials

What are the most purchased Differentials for the 1991 GMC G2500?

Out of 194 Differentials for the 1991 GMC G2500, the most popular in our inventory are:
Differential Cover Gasket
from $9.99
(195)
Differential Cover Gasket
Rear Housing Cover Gaskets
Tapered Cone/Cup Wheel Bearing Set
from $13.99
(14)
Tapered Cone/Cup Wheel Bearing Set
Differential Bearings
Differential Shaft Lock Bolt
from $5.99
(11)
Differential Shaft Lock Bolt
Differential Pinion Shaft Lock Bolts

What are the top-rated 1991 GMC G2500 Differentials?

Top-rated Differentials for your 1991 GMC G2500 based on customer reviews/ratings are:
Differential Ring And Pinion
from $342.99
(23)
Differential Ring And Pinion
“So far so good.”
Rear Differential Cover
from $32.99
(14)
Rear Differential Cover
“Heavy steel with the original magnet. Fits like original.. Not a cheap stamping by any means”
Differential Yoke including Seal and Pinion Nut
from $139.99
(10)
Differential Yoke including Seal and Pinion Nut
“Came with everything I needed and Fit like a glove on my 2002 gmc 4.8L sierra. No more leaks from rear differential.”