1999 GMC Sierra 1500 Differentials

Essential 1999 GMC Sierra 1500 Differentials

Motive Gear – Differential Spool (Part No.FS10-30)

Differential Spool

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$187.99


Product Features:
  • FULL SPOOL GM 8.5 30 SPL ST MUST USE 2-LM102911 & 2-LM102949
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Powertrax – Grip LS Traction System (Part No.LS201030)

Grip LS Traction System

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$503.99
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 – Differential Cover B (Part No.33572)

Differential Cover B

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$7.99
Differential Cover B

Pro-King – Differential Case (Loaded) (Part No.742G715B)

Differential Case (Loaded)

from

$455.99
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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Yukon Gear – GM Side Gear Spacer Sleeve For GM 9.25" IFS (Part No.33533)

GM Side Gear Spacer Sleeve For GM 9.25" IFS

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$40.99
Product Features:
  • Side gear spacer sleeve
  • Fits GM 9.25″ IFS
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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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USA Standard Gear – Ring & Pinion Gear Set For GM 9.25" IFS Reverse Rotation In A 3.42 Ratio (Part No.36286)

Ring & Pinion Gear Set For GM 9.25" IFS Reverse Rotation In A 3.42 Ratio

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$399.99
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 9.25″ front
  • 9.25″ ring gear
  • 30 spline pinion
  • 12 ring gear bolts
  • 3.42 ratio
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Yukon Gear – Pinion Nut Washer (Part No.33167)

Pinion Nut Washer

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$14.99
Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.5″, 8.6″ & 9.5″.

Product Features:
  • Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.625″, 7.6″ IFS, 8.5″, 8.6″ and 9.5″.
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Motive Gear – Differential Carrier Gear Kit (Part No.GM8.6BIL)

Differential Carrier Gear Kit

from

$231.99
This Motive Gear Differential Rebuild Kit includes all of the parts required to rebuild your stock open differential. The gears are lapped for quiet operation. Includes spider and side gears, cross shaft, lock pin or bolt and thrust washers.

Product Features:
  • GM8.6″ INTERNAL KIT (OPEN) 30 SPL. MID 2000-2008
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Motive Gear – Differential Gear Install Kit (Part No.GM9.5IKL)

Differential Gear Install Kit

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$79.99


Product Features:
  • MINI INSTALL KIT-GM9.5/CHRY9.25 FRT
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Yukon Gear – Differential Gasket (Part No.23030)

Differential Gasket

from

$67.99
Differential Gasket

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

Differential Cross Shaft

from

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

Super Carrier Shim Kit For GM 9.5"

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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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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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Dorman – Front Differential Case Gasket Kit (Part No.926-817)

Front Differential Case Gasket Kit

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$52.99
Ensure a leak-free repair when servicing a differential. This differential gasket is a direct replacement for the original gasket and should be replaced every time work is performed on the differential housing.

Product Features:
  • Ideal replacement – this differential directly replaces the original gasket
  • Required for routine service – this gasket should be replaced every time work is performed on the differential housing
  • Durable construction – this differential gasket is made of durable materials for leak-free performance
  • Quality tested – this gasket has been tested for a guaranteed fit
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USA Standard Gear – Bearing Kit For ’98-’13 GM 9.5" (Part No.58051)

Bearing Kit For '98-'13 GM 9.5"

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$329.99
This kit uses Koyo 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 br

Product Features:
  • Fits 1998-2013 GM 9.5″
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, pinion nut, crush sleeve, marking compound and brush.
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Spartan – Drive Axle Assembly; GM 1500 RWD Truck Axle (Part No.RAXP1955C)

Drive Axle Assembly; GM 1500 RWD Truck Axle

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$1852.99
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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USA Standard Gear – Master Overhaul Kit for the ’09 and Newer GM 8.6" Differential (Part No.37060)

Master Overhaul Kit for the '09 and Newer GM 8.6" Differential

from

$319.99
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 2009 and up GM 8.6″
  • 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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USA Standard Gear – Standard Spider Gear Set For 33 Spline GM 9.5" And Pre ’06 GM 9.25IFS (Part No.39029)

Standard Spider Gear Set For 33 Spline GM 9.5" And Pre '06 GM 9.25IFS

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$214.99
Product Features:
  • Spider gear kit
  • Fits GM 9.5″ open differential
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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Spartan – Drive Axle Assembly; GM 1500 P/U GU5 09-13 Posi Rear Axle (Part No.RAXP0208A)

Drive Axle Assembly; GM 1500 P/U GU5 09-13 Posi Rear Axle

from

$1891.99
Remanufactured Rear Axle assemblies are completely disassembled and thoroughly cleaned and reassembled using new wear parts. Units are assembled, sealed and include backing plates, axle shafts and 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 – 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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Pro-King – Differential Bearing Cup (Part No.742G256)

Differential Bearing Cup

from

$8.99
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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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 – Yoke For 8.5" Or 8.6" GM (Mech 3R) With A U/Joint Size And Triple Lip Design (Part No.41071)

Yoke For 8.5" Or 8.6" GM (Mech 3R) With A U/Joint Size And Triple Lip Design

from

$226.99
Yukon yoke for 8.5″ or 8.6″ GM (mech 3R) with a U/joint size and triple lip design. 2.556″ snap ring span, 1.125″ cap diameter. Inside snap ring. This yoke uses inside snap rings. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:
  • Fits GM 8.5″ and 8.6″
  • 30 spline
  • Mechanics 3R u-joint size
  • 2.556″ snap ring span
  • 1.125″ cap diameter
  • Inside snap ring design
  • Strap style
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Yukon Gear – 9.5 Standard Open Pinion Gear Thrust Washer (Part No.33374)

9.5 Standard Open Pinion Gear Thrust Washer

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$28.99
9.5 Standard Open Pinion gear Thrust Washer.

Product Features:
  • Pinion gear thrust washer
  • Fits GM 9.5″
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Pro-King – Differential Pinion Yoke Washer (Part No.742A215)

Differential Pinion Yoke Washer

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.
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Pro-King – Shim Kit (Part No.741A200)

Shim Kit

from

$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.
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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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Popular 1999 GMC Sierra 1500 Differentials Categories

1999 GMC Sierra 1500 Differentials

Maybe you’re in the middle of a full rebuild of that 1999 GMC Sierra 1500. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 301 different Differentials in our inventory ranging from $1.99 to $2,369.99. That means you can find the exact parts or products you need to keep that 1999 GMC Sierra 1500 running smoothly.

Differentials are only as good as their brand. We stock 19 different brands to make sure you have plenty of trusted parts to choose from for your 1999 GMC Sierra 1500. Valvoline, Pennzoil, 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 1999 GMC Sierra 1500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 2,622 reviews in this category, some of the top rated parts include Differential Ring And Pinion with 4.2 stars and Multi Purpose Seal with 3.9 stars.

So if you’re in the market for aftermarket Differentials to keep your 1999 GMC Sierra 1500 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 1500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1999 GMC Sierra 1500 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 1500 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Pennzoil Differentials

We carry Pennzoil parts in our stock across Differential Oil categories, plus more. For a 1999 GMC Sierra 1500, our most popular Pennzoil Differentials include:
Synchromesh Manual Transmission Fluid: Low-Temperature
from $11.99
(104)
Synchromesh Manual Transmission Fluid: Low-Temperature
Differential Oil

FAQs for 1999 GMC Sierra 1500 Differentials

What are the most purchased Differentials for the 1999 GMC Sierra 1500?

Out of 301 Differentials for the 1999 GMC Sierra 1500, the most popular in our inventory are:
Differential Cover Gasket
from $9.99
(195)
Differential Cover Gasket
Rear Housing Cover Gaskets
Rear Differential Cover
from $51.99
(1)
Rear Differential Cover
Differential Covers
Differential Shaft Lock Bolt
from $5.99
(11)
Differential Shaft Lock Bolt
Differential Pinion Shaft Lock Bolts

What are the top-rated 1999 GMC Sierra 1500 Differentials?

Top-rated Differentials for your 1999 GMC Sierra 1500 based on customer reviews/ratings are:
Differential Ring And Pinion
from $342.99
(23)
Differential Ring And Pinion
“So far so good.”
Multi Purpose Seal
from $16.99
(14)
Multi Purpose Seal
“It’s a tight fit but that’s how seals are supposed to be. I greased it up real good and lightly tapped it in using a 1 lb hammer and all was good.”
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.”