1991 GMC K2500 Differentials

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:

• KIT BRG & SEAL 14 BLT MSTR 4.56&UP

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

Differential Cover B

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.

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.

Yukon spider gear set for GM 10.5″ 14 bolt truck Yukon Dura Grip posi. This kit does not include clutches. This kit fits Yukon Dura Grip ONLY. Will not work with factory Gov Loc.

Product Features:

• Spider gear kit
• Fits GM 10.5″ 14 bolt truck with Dura Grip positraction
• Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

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.

aFe Power’s new rear differential cover brings performance engineering to the protection of your axle’s differential. This differential cover is constructed out of durable A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. A calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover has a raw finish with machined fins for a distinctive look. 4 Quart Gear Oil Capacity: This cover has about a 4 quart gear oil capacity at the factory fill level, factory cover holds about 3 quarts. Built-in External Fins: Built-in external fins transfer heat from the fluid to the outside air for maximum cooling. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level calibration plug: A 1/8″ NPT calibration plug is set to the factory fluid level which eliminates accidental overfilling. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.

Product Features:

• Constructed of Durable A356-T6 Cast Aluminum
• Reinforcing Ribs w/ a Raw Finish and Machined Fins
• Magnetic Drain and Fill Plugs Capture Loose Particles
• Calibration Plug Set to Factory Fluid Level

Mobil 1 Synthetic Gear Lubricant LS 75W-90 is a supreme, multi-purpose automotive gear lubricant that helps to provide exceptional thermal stability and resistance to high temperature oxidation, extending gear life due to minimal deposits. Helps to deliver outstanding protection against low speed/high torque wear with the capability to handle severe driving conditions while delivering smooth efficient performance. Mobil 1 Synthetic Gear Lubricant LS provides exceptional shear stability, corrosion protection, and enhanced frictional properties. Compared to conventional hypoid gear lubricants, Mobil 1 LS 75W-90 performs exceptionally over a wide range of temperatures to reduce wear at start up. Mobil 1 gear lube helps to minimize leakage and reduce contamination while providing good resistance to foaming to maintain film strength for reliable lubrication. Meets or exceeds the requirements of the following industry specifications: API GL-5.

Product Features:

• Mobil 1 LS synthetic automotive gear lubricant exceeds the highest level of performance requirements of modern passenger vehicles
• Helps to provide exceptional thermal stability and resistance to high temperature oxidation and extend gear life due to minimal deposits
• Delivers outstanding protection against low speed/high torque wear, handling severe driving conditions with smooth, efficient performance
• Compared to conventional hypoid gear lubricants, performs exceptionally over a wide range of temperatures to reduce wear at start up
• Provides exceptional shear stability, corrosion protection, and enhanced frictional properties
• Manufacturer Part Number: 104361

Product Features:

• KIT SHIM

Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1964-1970 Chevrolet 8.2 inch 10 bolt & 1970-1981 GM 8.5 inch ring gear

Product Features:

• .047″ thick cellulose/nitrile composite gasket material
• Precision die cut
• Reusable

O-ring for left hand carrier bearing adjuster for 9.25″ GM IFS.

Product Features:

• Axle o-ring
• Fits Chrysler 9.25″ IFS

Product Features:

• DANA-44 R/P 5.38 STD MG

Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses t

Product Features:

• Pinion nut for Dana Spicer 25, 27, 30, 44, 50 and GM 7.75″
• 3/4″ x 16 thread

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.

Product Features:

• MINI INSTALL KIT-GM9.5/CHRY9.25 FRT

The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. The Yukon Zip locker is an air operated locker that provides selectable traction for off road or street use. This unit features 4320 Chrome Moly internals for added strength. Assembled in the USA! compressor sold separately. All Zip Lockers are backed by the best warranty in the business! All Zip Lockers come with a six (6) year warranty, including any collaterally damaged parts and associated labor, up to $2,000, for the first two (2) years.

Product Features:

• Fits Dana Spicer 44 with 30 spline axles
• 3.73 and down ratio only
• Forged case and 8620 internals for added strength
• Works with a variety of air delivery systems
• Assembled in the USA

Standard open cross pin (0.795″ diameter) for 8.5″ GM. fits some Eaton positractions.

Product Features:

• Cross pin shaft for GM 8.5″ and 8.6″
• Fits standard open differentials only
• 0.795″ diameter

Yukon positraction internals for Dana 44 Dura Grip posi, 30 spline. Does not include clutches. Does NOT fit Trac Loc or Powr Lok. Fits Dura Grip ONLY.

Product Features:

• Spider gear kit
• Fits Dana Spicer 44 with Dura Grip positraction
• Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

8.5″ GM 4WD front pinion seal.Yukon Mighty seal.

Product Features:

• Pinion seal
• Fits GM 8.5″ front

Product Features:

• Side gear spacer sleeve
• Fits GM 9.25″ IFS

Right hand adjuster lock for 9.25″ GM IFS.

Product Features:

• Side adjuster lock
• Fits 2010 and down GM 9.25″ IFS
• Right hand side

Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush. (includes Supershims)

Product Features:

• Fits GM 8.5″ front
• Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.

Crush sleeve for Dana 44 JK rear, 8″ GM & 8.25″ IFS. Approx 0.625″ long.

Product Features:

• Crush sleeve for GM 8.0″ and 8.25″ IFS
• 0.625″ tall

Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier and give 100% power to both tires at all times. These units are not recommended for street-driven vehicles. We recommend full spools for vehicles with large tires or high horsepower. These units come with a one year warranty against manufacturing defects.

Product Features:

• Fits GM 8.5″ with 30 spline axles
• Installs into a standard open carrier case
• Provides 100% traction to both wheels at all times
• Not recommended for street driven vehicles

Product Features:

• CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
• PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
• SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
• OE-STYLE DESIGN: Engineered to meet OE specifications
• COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
• RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

Side bearing adjuster lock for 8.25″ GM IFS.

Product Features:

• Side adjuster lock for GM 8.25″ IFS

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:

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