1999 GMC Sierra 2500 Differentials

Essential 1999 GMC Sierra 2500 Differentials

Spartan – Drive Axle Assembly; Chev 2500 P/U Axle (Part No.RAX2080A)

Drive Axle Assembly; Chev 2500 P/U Axle

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$1989.99
Remanufactured Rear Axle assemblies are completely disassembled, thoroughly cleaned and reassembled using new wear parts. Units are assembled, sealed & include backing plates, axle shafts & fluid.

Product Features:
  • Rear axles are assembled with backing plates & axle shafts, and filled with fluid prior to shipping
  • Axles are fully painted & shipped securely in environmentally safe and recyclable containers that are the perfect size for returning your original core
  • Our complete Rear axle assemblies mean you just hang brakes, connect suspension & go! Your installation will be simple and trouble free
  • Remember to match axle ratio to original. For 4WD rear axle must match front axle ratio
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Yukon Gear – 11.5" GM Standard Open Side Gear Thrust Washer (Part No.33387)

11.5" GM Standard Open Side Gear Thrust Washer

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$31.99
11.5″ GM standard Open side gear Thrust washer.

Product Features:
  • Side gear thrust washer
  • Fits GM 11.5″
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Yukon Gear – Bearing Race Driver (Part No.56012)

Bearing Race Driver

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$215.99
Bearing race driver for rear GM 9.5″, 9.25″ IFS, and Ford 9″ HD. (TK HM804810). No return.

Product Features:
  • Bearing race driver
  • Fits HM804810 race
  • All steel construction
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Yukon Gear – 11.5 GM Spanner Adjuster Nut (Part No.33262)

11.5 GM Spanner Adjuster Nut

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$41.99
11.5 GM spanner adjuster nut.

Product Features:
  • Side adjuster
  • Fits GM 11.5″
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National – Bearings (Part No.HM88510)

Bearings

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$14.29
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Yukon Gear – Adjuster Lock Bolt For Left Hand Case Half Of 7.2" And 9.25" GM IFS (Part No.33244)

Adjuster Lock Bolt For Left Hand Case Half Of 7.2" And 9.25" GM IFS

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

Pinion Install Kit For '99 & Newer 10.5" GM 14 Bolt Truck Differential

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$449.99
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 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.
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Driveworks – Wheel Bearing (Part No.S-R1581-TV)

Wheel Bearing

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$27.99
Product Features:
  • Brand may vary by location
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USA Standard Gear – Ring & Pinion Gear Set For GM 11.5" In A 4.88 Ratio (Part No.36163)

Ring & Pinion Gear Set For GM 11.5" In A 4.88 Ratio

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$544.99
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 and Chrysler 11.5″
  • 11.50″ ring gear diameter
  • 30 spline pinion
  • 12 ring gear bolts
  • 4.88 ratio
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Yukon Gear – 9.5" GM Cover Gasket (Part No.23023)

9.5" GM Cover Gasket

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$13.99
9.5″ GM cover gasket.

Product Features:
  • Cover gasket
  • Fits GM 9.5″
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Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

3 Qt - Penzoil 80W90 Conventional Gear Oil

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$44.99
3 Qt. Penzoil 80W90 conventional gear Oil.

Product Features:
  • Includes three quarts of conventional oil
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Yukon Gear – DiffrlPinSupportBolt (Part No.33582)

DiffrlPinSupportBolt

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$5.99
DiffrlPinSupportBolt

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)

Standard Open And Gov-Loc Cross Pin Bolt With M10X1.5 Thread For 9.5" And 9.25" GM IFS

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$23.99
Product Features:
  • Cross pin bolt
  • Fits GM 9.5″ and 9.25″ IFS
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Yukon Gear – 10.5" GM 14 Bolt Truck Ring Gear Bolt (Part No.33050)

10.5" GM 14 Bolt Truck Ring Gear Bolt

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$11.99
10.5″ GM 14 bolt truck ring gear bolt 4.56 & up. 9/16″ x 18. 2.522″ overall length.

Product Features:
  • Ring gear bolt for GM 10.5″ 14 bolt truck
  • 4.56 and up ratio
  • 1/2″ x 18 thread
  • 2.522″ overall length
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Yukon Gear – Eaton-Type Positraction Carbon Clutch Kit With 14 Plates For GM 14T And 10.5" (Part No.16112)

Eaton-Type Positraction Carbon Clutch Kit With 14 Plates For GM 14T And 10.5"

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$304.99
Yukon 1480 Lifetime Series U/Joint. 4.188″ snap ring span, 1.375″ cap diameter. Outside snap ring.

Product Features:
  • Clutch kit
  • Fits GM 10.5″ 14 bolt truck with Eaton positraction
  • Carbon fiber clutches
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Motive Gear – Differential Gear Install Kit (Part No.GM11.5IK)

Differential Gear Install Kit

from

$74.99
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!
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Felpro – Differential Cover G (Part No.J7018977707FEL)

Differential Cover G

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$8.28
Differential Cover G

MTC – Differential Drain P (Part No.J70581460602MTC)

Differential Drain P

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$8.02
Differential Drain P

Yukon Gear – Differential Carrier (Part No.57015)

Differential Carrier

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$251.99
Differential Carrier

Motive Gear – Differential Carrier (Part No.6258340)

Differential Carrier

from

$205.99


Product Features:
  • GM10.5″ 14 BOLT OPEN EMPTY CASE 4:56 & UP
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Yukon Gear – Grizzly Locker For GM 10.5" 14 Bolt Truck With 30 Spline Axles (Part No.28015)

Grizzly Locker For GM 10.5" 14 Bolt Truck With 30 Spline Axles

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$859.99
The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:
  • Fits GM 10.5″ 14 bolt truck
  • Installs into standard open carrier
  • Patented internal design reduces common locker failures
  • 8620 internals for added strength
  • Assembled in the USA
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Yukon Gear – Left Hand Adjuster Lock Nut For 9.25" GM (Part No.33354)

Left Hand Adjuster Lock Nut For 9.25" GM

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$26.99
Left hand adjuster lock nut for 9.25″ GM.

Product Features:
  • Side adjuster lock nut
  • Fits GM 9.25″
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Yukon Gear – Crush Sleeve (Part No.33099)

Crush Sleeve

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$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
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Yukon Gear – Cross Pin Shaft For GM 9.5", Fits Standard & Dura Grip Or Eaton Posi Carrier (Part No.33205)

Cross Pin Shaft For GM 9.5", Fits Standard & Dura Grip Or Eaton Posi Carrier

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$32.99
Product Features:
  • Cross pin shaft
  • Fits GM 9.5″
  • Dura Grip positraction
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Motive Gear – Differential Pinion Shim Kit (Part No.1102)

Differential Pinion Shim Kit

from

$9.49


Product Features:
  • KIT SHIM PINION
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Yukon Gear – 11.5" GM Standard Open Pinion Gear Thrust Washer (Part No.33388)

11.5" GM Standard Open Pinion Gear Thrust Washer

from

$15.99
11.5″ GM standard Open pinion gear Thrust washer.

Product Features:
  • Pinion gear thrust washer
  • Fits GM 11.5″
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Dorman – Rear Differential Cover (Part No.697-703)

Rear Differential Cover

from

$36.99
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
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Yukon Gear – Bearing Install Kit For ’10 & Down GM 9.25" IFS Front Differential (Part No.11106)

Bearing Install Kit For '10 & Down GM 9.25" IFS Front Differential

from

$534.99
Yukon Bearing installation kits are perfect for shops & builders who have shims on the shelf and are looking to save cost over a Master Overhaul kit. This kit uses Timken bearings and races along with all high quality small parts. kit includes carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve (if applicable), oil baffles and slingers (if applicable), marking compound and 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 ring & pinion set..

Product Features:
  • Fits 2010 and down GM 9.25″ IFS
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve, marking compound and brush.
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1999 GMC Sierra 2500 Differentials

Maybe you’re in the middle of a full rebuild of that 1999 GMC Sierra 2500. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 214 different Differentials in our inventory ranging from $2.99 to $2,195.99. That means you can find the exact parts or products you need to keep that 1999 GMC Sierra 2500 running smoothly.

Differentials are only as good as their brand. We stock 15 different brands to make sure you have plenty of trusted parts to choose from for your 1999 GMC Sierra 2500. Valvoline, Felpro, and Driveworks 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 1999 GMC Sierra 2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,618 reviews in this category, some of the top rated parts include Ring and Pinion Bearing Installation Kit with 3.8 stars and Rear Differential Cover with 4.4 stars.

So if you’re in the market for aftermarket Differentials to keep your 1999 GMC Sierra 2500 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 1999 GMC Sierra 2500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1999 GMC Sierra 2500 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 Sierra 2500 the best it can be. Be sure to browse some of our top Differentials brands and parts.

FAQs for 1999 GMC Sierra 2500 Differentials

What are the most purchased Differentials for the 1999 GMC Sierra 2500?

Out of 214 Differentials for the 1999 GMC Sierra 2500, the most popular in our inventory are:
Tapered Cone/Cup Wheel Bearing Set
from $13.99
(14)
Tapered Cone/Cup Wheel Bearing Set
Differential Bearings
Differential Cover Gasket
from $6.79
(13)
Differential Cover Gasket
Rear Differential Cover Gaskets
Differential Cover Gasket
from $7.99
(20)
Differential Cover Gasket
Rear Housing Cover Gaskets

What are the top-rated 1999 GMC Sierra 2500 Differentials?

Top-rated Differentials for your 1999 GMC Sierra 2500 based on customer reviews/ratings are:
Ring and Pinion Bearing Installation Kit
from $282.99
(255)
Ring and Pinion Bearing Installation Kit
“good price”
Rear Differential Cover
from $36.99
(15)
Rear Differential Cover
“For as it should”
Rear Differential Cover
from $55.99
(11)
Rear Differential Cover
“Good quality cover, nice coat of paint on it. Should outlast the truck.”