1991 GMC G3500 Differentials

These Yukon replacement diff covers are a direct bolt-on.

Pro-King is the leading supplier of transmission and driveline products in the aftermarket. All products are designed to meet or exceed OE quality, form, fit and function.

Yukon Gear & Axle offers a full line of top quality differential tools to save time and money.

Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Spartan spring & pin kit, fits larger designs.

This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.

Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

Choosing an automatic transmission fluid just got easier. Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the #1 ATF product, is suitable for use in 95% of ATF vehicles in operation with US registered light duty applications. And now, it€™s also recommended for most belt and chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it€™s designed to help prevent leaks, reduce wear and tear, and maximize performance €“ all for much longer than conventional fluids. It has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Whether your vehicle has a CVT or traditional automatic, Valvoline MaxLife Multi-Vehicle ATF is suitable for a broad range of transmissions including Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW and Audi vehicles. It€™s specifically recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC. For the many miles ahead, trust your transmission with Valvoline, the #1 automatic transmission fluid brand.

“3/8″” cover bolt, Dana 60, Dana 70 & Dana 80.”

Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.

Motive Gear Differential Internal Carrier Gear Kit, GM9.5BI.

Yukon 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 delivers 100% power to both tires at all times. These units are not recommended for street-driven vehicles. Full spools are recommended for vehicles with large tires or high horsepower.

Yukon Gear & Axle clutch kits fit popular Dana diffs outfitted with a Power Lok positraction unit feature 14 advanced carbon clutch plates, ensuring total traction and long-lasting performance.

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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.

“GM 9.5″” ring gear bolt. 12mm x 1.5. EXTERNAL SUPPLY>FDO>BACK ROOM-FDO>APPLICATION SPECIFIC from Yukon Gear”

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.

“Yukon Gear GM 9.5″” & 9.76″” Carrier Installation Kit, 57015. ”

Manufactured with premium-grade steel, National taper bearing sets feature crowned raceways and rollers to ensure even load distribution.

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

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 select ability.

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 select ability.