1988 GMC R2500 Differentials

Essential 1988 GMC R2500 Differentials

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

Differential Cover Gasket

from

$3.49
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.
See More

Pro-King – Differential Pinion Gear Washer (Part No.744A216)

Differential Pinion Gear Washer

from

$3.19
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.
See More

Motive Gear – Differential Carrier (Part No.14038087)

Differential Carrier

from

$139.99


Product Features:
  • GM9.5″ OPEN EMPTY CASE FRONT&REAR
See More

Driveworks – Oil Seal (Part No.S-2286)

Oil Seal

from

$13.29
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Motive Gear – Differential Pinion Shim Kit (Part No.GM14SK)

Differential Pinion Shim Kit

from

$22.99


Product Features:
  • KIT SHIM GM 10.5 14 BLT
See More

NTN – Differential Bearing (Part No.J7060741150NTN)

Differential Bearing

from

$39.02
Differential Bearing

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

Steel Cover For GM 10.5" 14 Bolt Truck

from

$83.99
Product Features:
  • Fits GM 10.5″ 14 bolt truck
  • Steel
See More

Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R14RLMKL)

Differential Master Bearing Kit - Koyo

from

$150.99
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:
  • GM 10.5 MASTER KIT BRG & SEAL 14BL 4.56-UP, ’88-97
See More

Powertrax – Lock Right Locker (Part No.1950-LR)

Lock Right Locker

from

$487.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! 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!

Product Features:
  • Powertrax® proves that you don’t have to choose between the superior traction of a locking differential and smooth handling and drivability of an open differential. Powertrax Lock-Right Lockers, No-Slip Traction Systems and GRIP limited slip differentials and lockers give you 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!
See More

Driveworks – Wheel Bearing (Part No.S-R1581-TV)

Wheel Bearing

from

$27.99
Product Features:
  • Brand may vary by location
See More

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil With Positraction Additive - 4 Quarts

from

$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
See More

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

Differential Gear Install Kit

from

$44.49
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
See More

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

Taper Bearing Set

from

$13.79
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Yukon Gear – Set Up Bearing (Part No.56041)

Set Up Bearing

from

$152.99
Set-up bearing (one bearing). HM803149. No return.

Product Features:
  • Set up bearing
  • Fits HM803149 pinion bearing
  • Easily slips on and off pinion journal to allow for pinion depth adjustment
See More

USA Standard Gear – Master Overhaul Kit for the ’88 and Older GM 10.5" 14T Differential (Part No.37044)

Master Overhaul Kit for the '88 and Older GM 10.5" 14T Differential

from

$349.99
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 1988 and down 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.
See More

Yukon Gear – Pinion Nut (Part No.33152)

Pinion Nut

from

$9.99
Pinion nut for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.0″, 8.25″, 8.5″, 8.6″, 9.25″ IFS, 9.5″ & Oldsmobile Dropouts. 1 1/4″ socket, 7/8″ x 14 thread.

Product Features:
  • Pinion nut for GM 7.2″, 7.5″, 7.625″, 8.0″, 8.25″ IFS, 8.5″, 8.6″, 9.25″ IFS and 9.5″
  • 7/8″ x 14 thread
  • 1 1/4″ socket
See More

Motive Gear – Differential Carrier Shim Kit (Part No.GM9.5SSK)

Differential Carrier Shim Kit

from

$21.99


Product Features:
  • KIT SHIM SIDE 9.5″ GM
See More

Yukon Gear – Dura Grip Positraction For GM 9.5" With 33 Spline Axles (Part No.26025)

Dura Grip Positraction For GM 9.5" With 33 Spline Axles

from

$988.99
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.

Product Features:
  • Fits GM 9.5″
  • 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
See More

Motive Gear – Differential Ring and Pinion (Part No.GM10.5-456X)

Differential Ring and Pinion

from

$284.99


Product Features:
  • GM 14BL 10.5 R/P 4.56 THICK MG
See More

Yukon Gear – Crush Sleeve (Part No.33099)

Crush Sleeve

from

$13.99
Crush Sleeve for Chrysler 9.25″ front, GM 8.6″ IRS, 9.25″ IFS & 9.5″. Approx 0.640″ long.

Product Features:
  • Crush sleeve for Chrysler 9.25″ front, GM 8.6″ IRS, 9.25″ IFS and 9.5″
  • 0.640″ tall
See More

Dorman – Differential Pinion Yoke Assembly (Part No.697-545)

Differential Pinion Yoke Assembly

from

$313.99
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
See More

Yukon Gear – 1541H Alloy 8 Lug Rear Axle For GM 9.5" ’81-’95 Truck And ’83-’96 G30 (Part No.21252)

1541H Alloy 8 Lug Rear Axle For GM 9.5" '81-'95 Truck And '83-'96 G30

from

$429.99
Yukon 1541H alloy 8 lug rear axle for GM 9.5″ ’81-’95 truck and ’83-’96 G30 with a length of 32-3/4″ inches and 33 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a C-clip axle.

Product Features:
  • 33 spline
  • 8 lug
  • 32.75″ long
  • Fits GM 9.5″ in 1981-1995 truck and 1983-1996 G30 van
See More

Motive Gear – Ring Gear Bolt (Part No.14012703)

Ring Gear Bolt

from

$11.39
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
See More

Motive Gear – Differential Carrier (Part No.6258340)

Differential Carrier

from

$205.99


Product Features:
  • GM10.5″ 14 BOLT OPEN EMPTY CASE 4:56 & UP
See More

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

Differential Shaft Lock Bolt

from

$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
See More

Felpro – Differential Cover Gasket (Part No.RDS 55387)

Differential Cover Gasket

from

$7.99
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
See More

1988 GMC R2500 Differentials

Maybe you’re in the middle of a full rebuild of that 1988 GMC R2500. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 97 different Differentials in our inventory ranging from $1.89 to $591.99. That means you can find the exact parts or products you need to keep that 1988 GMC R2500 running smoothly.

Differentials are only as good as their brand. We stock 12 different brands to make sure you have plenty of trusted parts to choose from for your 1988 GMC R2500. National, 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 1988 GMC R2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 388 reviews in this category, some of the top rated parts include Differential Master Bearing Kit – Koyo with 3.8 stars and Cylindrical Bearing with 3.0 stars.

So if you’re in the market for aftermarket Differentials to keep your 1988 GMC R2500 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 1988 GMC R2500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1988 GMC R2500 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 R2500 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular National Differentials

We carry National parts in our stock across Differential Pinion Seals and Differential Bearings categories, plus more. For a 1988 GMC R2500, our most popular National Differentials include:
Multi Purpose Seal
from $17.49
(1)
Multi Purpose Seal
Differential Pinion Seals
Bearings
from $22.99
(12)
Bearings
Differential Bearings
Bearings
from $16.99
(6)
Bearings
Differential Bearings

Top 1988 GMC R2500 Differentials from Felpro

Felpro products are another trusted brand when it comes to Differentials for your 1988 GMC R2500. Popular Felpro parts include:
Differential Cover Gasket
from $7.99
(20)
Differential Cover Gasket
Rear Housing Cover Gaskets
Differential Cover Gasket
from $6.79
(13)
Differential Cover Gasket
Rear Differential Cover Gaskets

FAQs for 1988 GMC R2500 Differentials

What are the most purchased Differentials for the 1988 GMC R2500?

Out of 97 Differentials for the 1988 GMC R2500, the most popular in our inventory are:
Differential Shaft Lock Bolt
from $5.99
(11)
Differential Shaft Lock Bolt
Differential Pinion Shaft Lock Bolts
3 Qt - Penzoil 80W90 Conventional Gear Oil
from $44.99
This product is not rated
3 Qt – Penzoil 80W90 Conventional Gear Oil
Differential Oil
Rear Differential Cover
from $38.49
(15)
Rear Differential Cover
Differential Covers

What are the top-rated 1988 GMC R2500 Differentials?

Top-rated Differentials for your 1988 GMC R2500 based on customer reviews/ratings are:
Differential Master Bearing Kit - Koyo
from $156.99
(5)
Differential Master Bearing Kit – Koyo
“was delivered as promised and on time”
Cylindrical Bearing
from $31.99
(4)
Cylindrical Bearing
“excellent product”
Taper Bearing Set
from $13.79
(4)
Taper Bearing Set
“Worked great on my 1981 Chevy C20”