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GMC K2500 Differential

We have 12 Items In-stock. Select a year to continue.
$103.97 List Price $122.68 Save $18.71 Availability: In Stock
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TIMKEN DIFFERENTIAL REBUILD KIT -- For differentials with 8.25 in. ring gear diameter; Consists of differential bearings, pinion head bearing, pinion tail bearing, pinion seal, crush sleeve, pinion nut, gear marking compound and brush, thread locker, and RTV silicone sealer.
  • SKU#: TMDRK321
  • Brand: Timken
  • Fit Note: 4WD, 8.5 in. Ring Gear
  • Anticipated Ship Out Time: Same day - 1 business day
 
Fits the following GMC K2500 Years:
  • 1979-1986 | All Engines | Base, High Sierra, Sierra Classic
  • 1979-1982 | All Engines | Sierra Grande
Rating: (see review/s)

"Managed to use the bearings fine but some of the seals did not fit anywhere and the most important pinion seal was way off. Also the pinion nut was of questionable quality compared to the original and the thread mismatched which we only discovered when we started torquing. Result was thread on pinion damaged and new ring and pinion required.Mixed feelings!!" posted by: Nigel Carey on June 18, 2014

$462.06 List Price $545.23 Save $83.17 Availability: In Stock
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YUKON GEAR – DURA GRIP POSITRACTION LOCKERS

Yukon Gear’s forged steel and composite Dura Grip lockers give you back that power you lost when you installed those oversized tires, which means more traction on the trail – a must under extreme or dangerous off-road conditions. Yukon Gear was founded in Washington state – where extreme weather and off-roading are commonplace – and manufactures performance products that were built to perform and built to last in harsh environments.

  • Transfers torque to the ground for the best traction
  • Features forged steel internal components and nodular transfer case
  • Backed by a 1-year warranty
  • Come in many SUV, truck and passenger car applications
  • Upgrades available for racing applications
  • Affordable
  • Offer hardcore traction with smooth engagement
  • Raybestos clutch-style positraction means optimal performance and durability
  • Locker is conveniently rebuildable which saves you money
  • SKU#: YUKYDGGM853301
  • Brand: Yukon Gear & Axle
  • Fit Note: 4WD, 30 Spline, 2.73 and Up, Front 8.5 in. (10 Bolt)
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Anticipated Ship Out Time: 1-2 Business Days
  • Notes: Designed For 2.73 Ratio and Up Only
  • Spline Count: 30
(see more)
Fits the following GMC K2500 Years:
  • 1989-1990 | 8 Cyl 6.2L | Sierra SLE, Sierra SLX, Sierra
  • 1982-1986 | 8 Cyl 6.2L | Base, High Sierra, Sierra Classic
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$139.61 List Price $164.74 Save $25.13 Availability: In Stock
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MOTIVE GEAR DIFFERENTIAL INTERNAL KIT -- Includes side gears, side gear washers, pinion gears, pinion gear washers, pinion shaft and lock bolt or roll pin; This is a high quality, direct fit OE replacement differential internal kit.
  • SKU#: M92GM10BI30
  • Brand: Motive Gear
  • Fit Note: For Use With Case Number Ending 3855, 30 Spline, 8.5 in. (10 Bolt)
  • Warranty: 6-month or 50,000-mile Motive Gear limited warranty
 
Fits the following GMC K2500 Years:
  • 1989-1991 | All Engines | All Submodels
$53.19 List Price $62.76 Save $9.57 Availability: In Stock
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TRANSDAPT – DIFFERENTIAL COVERS

Finished rebuilding your differential? Add some underbody flair by bolting on a Transdapt Differential Cover in chrome, all for a relatively low cost. Direct fit versions are made for many popular Mopar, Ford and GM vehicles. Also recommended is the Transdapt Universal Magnetic Oil Drain Plug (sold individually), which helps to extend the life of the differential by collecting metal particles. Transdapt started in 1959 when founder Willie Garner created transmission adapters to be able to bring together engines and transmissions that were not made to work with each other in order to build the best performing custom cars. Through the years, Transdapt expanded and added carburetor adapters, engine swap kits and then a full line of chrome dress-up parts to add more style to your daily driver or your show car.

  • Simple to install
  • Comes with standard fill and drain plugs
  • A low cost way to pump up your vehicle’s style
  • Choose from versions with or without bolts and gaskets
  • Perfect fit
  • SKU#: T379071
  • Brand: Transdapt
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Axle Type: 10.5 in. ring gear
(see more)
Fits the following GMC K2500 Years:
  • 1994-2000 | 8 Cyl 7.4L | Sierra SL, Sierra SLT
  • 1992-2000 | 8 Cyl 6.5L | Sierra SLE
(see more)
$33.41 List Price $39.42 Save $6.01 Availability: In Stock
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DORMAN DIFFERENTIAL COVER, SOLD INDIVIDUALLY -- 10.5 in. ring gear diameter; 14-bolt; Without drain plug; This high quality differential cover directly replaces OE number 26067040.
  • SKU#: RB697703
  • Brand: Dorman
  • Fit Note: With 10.5 in. Ring Gear
  • Quantity Sold: Sold Individually
  • Anticipated Ship Out Time: Same day - 1 business day
  • Replaces OE Number: 26067040
  • Warranty: Lifetime Dorman limited warranty
 
Fits the following GMC K2500 Years:
  • 1994-2000 | 8 Cyl 7.4L | Sierra SL, Sierra SLT
  • 1992-2000 | 8 Cyl 6.5L | Sierra SLE
(see more)
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$8.41 List Price $9.92 Save $1.51 Availability: In Stock
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FELPRO DIFFERENTIAL GASKET, SOLD INDIVIDUALLY -- This pre-cut OE replacement differential gasket eliminates any need for RTV (Room Temperature Vulcanizing) sealant that can contaminate the differential housing.
  • SKU#: FPRDS550281
  • Brand: Felpro
  • Fit Note: GMC 8.5 in. Ring Gear
  • Anticipated Ship Out Time: 1-2 Business Days
 
Fits the following GMC K2500 Years:
  • 1986 | 8 Cyl 6.2L | Base, High Sierra, Sierra Classic
  • 1979-1981 | All Engines | Base, High Sierra, Sierra Classic, Sierra Grande
Rating: (see review/s)

"The gasket was the correct one, but I didnt need it because the cover came with one. It should say the cover already comes with a gasket. Guess thats how you make a little extra $$. Its more of a hassle to send it back so I kept it. It also came in a separate box, could have been put in with the cover. Some body was sleeping." posted by: on September 26, 2014

"Time will tell if it holds the seal tight but it was easy to install and seems to be just fine. Installed on my 2001 Silverado 4x2" posted by: on April 11, 2014 view all 2 reviews

$129.94 List Price $163.99 Save $34.05 Availability: In Stock
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ALLOY USA – DIFFERENTIAL LOCK KITS

Alloy USA’s differential lock kit gives drivers the ability to lock the front axle in 4-wheel drive without relying on the poorer-performing OEM vacuum system, without having to invest in lockers or posi-traction. Alloy USA, affiliated with industry leader Omix-Ada, designs and manufactures the highest quality ring and pinions and axle shafts in the aftermarket and primarily serves muscle car, off-road vehicle and trucks owners.

  • Replaces unpredictable factory vacuum system
  • Costs significantly less than adding a locker or posi-trac system
  • Simple installation
  • Gives you the power to lock the front axle from inside once transfer case is in 4WD
  • 3-year warranty
  • SKU#: ALY450600
  • Brand: Alloy USA
  • Fit Note: 6 Lug Wheel
  • Warranty: Alloy USA 5-Year Limited Warranty
 
Fits the following GMC K2500 Years:
  • 1988-1998 | All Engines | All Submodels
$30.78 List Price $36.32 Save $5.54 Availability: In Stock
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SPECTRE DIFFERENTIAL COVER, STEEL, CHROME-PLATED, SOLD INDIVIDUALLY -- Fits over 8.5 in. ring gears; 10-bolt; Includes chrome bolts and gasket; Triple chrome-plated; Made to exact OEM specifications.
  • SKU#: S716087
  • Brand: Spectre
  • Product Fit: Universal
  • Quantity Sold: Sold Individually
  • Anticipated Ship Out Time: 2-3 business days
  • Bolt Count: 10
  • Includes: Installation hardware
(see more)
Fits the following GMC K2500 Years:
  • 1991 | 8 Cyl 7.4L | Sierra SLE, Sierra SLX, Sierra
Rating: (see review/s)

"Bolted right up. It was nice the gasket and matching bolts were included." posted by: Curly on December 19, 2013

$19.92 List Price $23.51 Save $3.59 Availability: In Stock
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RACING POWER DIFFERENTIAL COVER, STEEL, CHROME -- Does not include gasket; This high quality, direct fit differential cover fits both axles and adds a custom touch to your vehicle; For American cars and trucks.
  • SKU#: RPWS9069
  • Brand: Racing Power
  • Fit Note: 4WD, 1/2- & 3/4 Ton
  • Quantity Sold: Sold Individually
  • Anticipated Ship Out Time: 3-4 business days
  • Does Not Include: Gasket(s)
 
Fits the following GMC K2500 Years:
  • 1979-1986 | All Engines | Base, High Sierra, Sierra Classic
  • 1979-1982 | All Engines | Sierra Grande
$81.58 List Price $96.26 Save $14.68 Availability: In Stock
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AC DELCO DIFFERENTIAL BEARING, SOLD INDIVIDUALLY -- 2.25 in. diameter; 3.81 diameter; 0.826 in. thick; Includes cup and cone; This is a high quality OE replacement differential bearing.
  • SKU#: AC387AS382A
  • Brand: AC Delco
  • Fit Note: Truck, 10.50 Dia. Ring Gear
  • Anticipated Ship Out Time: Same day - 1 business day
 
Fits the following GMC K2500 Years:
  • 1996-2000 | 8 Cyl 7.4L | Sierra SL, Sierra SLE, Sierra SLT
  • 1994-2000 | 8 Cyl 6.5L | Sierra SL, Sierra SLT
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$14.04 List Price $16.57 Save $2.53 Availability: In Stock
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MR GASKET DIFFERENTIAL GASKET -- 10-bolt; For use in differentials with 8.5 in. ring gear; Made from a blend of nitrile rubber and fiber for excellent sealing and durability; Precision die-cut for a perfect fit; With Mr Gasket's limited 90-day warranty.
  • SKU#: G1284B
  • Brand: Mr Gasket
 
Fits the following GMC K2500 Years:
  • 1979-1981 | All Engines | All Submodels
$177.65 List Price $220.00 Save $42.35 Availability: In Stock
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B&M – CAST ALUMINUM DIFFERENTIAL COVERS

A B&M cast aluminum diff cover will not only protect your differential’s critical components better, but it allows you to add an extra half quart of oil and will keep your fluids cooler than a stock cover can. B&M Racing & Performance paved the way for racers back in the ‘50s with aftermarket shifters, enhanced performance transmissions and torque converters that made everyone faster, and is now considered a world leader in the automotive aftermarket.

  • Cast T6 aluminum
  • Built-in fill plug and magnetic drain plug
  • You can add an additional half quart of oil and keep fluids cooler overall
  • Keeps case and rear end parts clean and straight
  • Provides additional protection for ring and pinion gears
  • Backed by a 1-year warranty
  • No mods needed for dipstick
  • SKU#: B3270501
  • Brand: B&M
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Recommended Use: Street Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Axle Type: GM 10.5
(see more)
Fits the following GMC K2500 Years:
  • 1994-2000 | 8 Cyl 7.4L | Sierra SL, Sierra SLT
  • 1992-2000 | 8 Cyl 6.5L | Sierra SLE
(see more)
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