GMC K15 Drivetrains

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:

• Powr Lok button kit
• Fits Dana Spicer 30, 44 and Chrysler 8.75″

By constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry’s Problem Solver.

Product Features:

• Machined bodies to meet the tight tolerances
• Forged and cast material to meet the performance requirement
• Minimize the flash lines for less interference
• Cleaning process induces compressive strength for increased performance
• Machined and threaded holes for mounting ease
• Rust preventative added for longer shelf life

National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Designed to repair damaged, grooved or worn shafts
• Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
• Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
• Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
• Easy to install with removable flange and installation tool
• Installation tool reduces sleeve distortion and allows for installation without removal from the shaft

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!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.

Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.

Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.

Powertrax® = Extreme Traction Systems!

Product Features:

• Spider gear kit
• Fits GM 8.5″ 28 spline open differential
• Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.

Replacing a drive shaft doesn’t have to be complicated. This complete drive shaft assembly is pre-balanced and ready to install with 100% new yokes, tubes, constant velocity (CV) joints and universal joints.

Product Features:

• Direct replacement – this drive shaft is made to the original equipment dimensions for dependable fit and performance
• 100% new – this drive shaft is made from all new components so there’s no core charge or return hassle
• Ready to install – this drive shaft arrives pre-balanced to make installation quick and simple
• Serviceable construction – non-staked universal joints are designed for future serviceability

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

Standard open side gear thrust washer for 8.5″ GM.

Product Features:

• Side gear thrust washer
• Fits GM 8.5″

Dana 28, Dana 30, Dana 44, Dana 50 outer stub snap ring (inside locking hub).

Product Features:

• Outer stub snap ringn for Dana Spicer 28, 30, 44 and 50

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Unsurpassed quality you can trust
• Validated for fit, form and function
• Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to most standard one ton applications. This unit is works with differentials up to one-ton applcations. It is not compatible with Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

Product Features:

• Carrier bearing puller
• Works with an impact gun to safely and easliy remove carrrier bearings
• Not compatible with Dana 70HD, Dana 80, Ford 10.25″ and 10.5″ or Gm and Chrysler 11.5″ applications

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

Product Features:

• Spindle bearing and seal kit
• Includes all components required to complete the repair
• Controlled heat treating process for lasting performance and extended bearing life
• Industry leading coverage
• Professional technicians know they can depend on National

Yukon Performance 1-3/4″ deck steel spool for 8.5″ GM with 30 spline axles. Uses large bearings, 1.785 journals. Yukon performance spools are made from the highest quality materials to ensure high strength and long life in performance applications. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. Spools are not recommended for street driven vehicles. Yukon Performance spools come with a one year warranty against manufacturing defects. This spool requires the use of a C-Clip eliminator kit to be used.

Product Features:

• Fits GM 8.5″ with 30 spline axles
• 2.73 and up ratios only
• Provides 100% traction to both wheels at all times
• Not recommended for street driven vehicles

12T cover gasket.

Product Features:

• Cover gasket
• Fits GM 12 bolt truck

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
• Controlled heat treating process for lasting performance and extended bearing life
• Industry leading coverage
• Professional technicians know they can depend on National

Replacement Crush Sleeve for GM 7.6″ IRS, 8.5″, 8.6″, 8.75″, 8.875″ & Nissan Titan rear. Approx 0.620″ long.

Product Features:

• Crush sleeve for Jeep JK rear, GM 7.6″ IRS, 8.5″ and 8.6″ and Nissan Titan rear
• 0.620″ tall

Product Features:

• Outer oil slinger for Dana Spicer 25, 27, 30, 44 and 50

By constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry’s Problem Solver.

Product Features:

• Machined bodies to meet the tight tolerances
• Forged and cast material to meet the performance requirement
• Minimize the flash lines for less interference
• Cleaning process induces compressive strength for increased performance
• Machined and threaded holes for mounting ease
• Rust preventative added for longer shelf life

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.

Product Features:

• Fits Dana Spicer 44 with 30 spline axles
• 3.73 ratio and down only
• 4-spring, clutch style positraction
• Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
• Fully rebuildable
• Assembled in the USA

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.

Chrome Moly cross pin shaft for Mini-Spool for GM 12P and 12T HD.

Product Features:

• Hardened cross pin shaft
• Fits GM 12 bolt passenger car and truck

Product Features:

• Cover gasket
• Fits Dana Spicer 44

Replace your old or broken U-bolts with these high strength Rancho replacement U-bolt kits. These kits will work with a stock or an aftermarket leaf spring pack.

Product Features:

• These replacement U-bolts are for Rancho suspension systems only. Do not use them on other suspension kits.
• After 100 miles of use and after every off-road use, inspect all U-bolts for proper torque values.
• Made from high strength steel
• Works with a stock or an aftermarket leaf spring pack
• Sold in a master quantity of 15

4340 Chrome Moly outer stub for GM truck & Blazer and Jeep Wagoneer with disc breakes. 19 spline, 9.94″. Yukon 4340 Chrome-Moly axles provide up to 50% increased strength over stock axles for use in extreme performance applications with large tires and high horsepower. Yukon’s 4340 axles are manufactured using the latest technologies and the highest quality materials to ensure high strength and long life. Limited Lifetime warranty covers manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. “No Questions Asked” replacement for first warranty return, however Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through Randy’s ring & pinion) makes final determination on warranty considerations.

Product Features:

• Fits Dana Spicer 44 in GM truck and Blazer and Jeep Wagoneer with disc brakes
• 4340 Chromoly
• Outer stub
• 19 spline
• 9.94″ from end of splines to center of u-joint bore

Replacement front spindle for Dana 44, & 8.5″, 6 holes, 1.625″ & 2.0″ bearing Journal, front.

Product Features:

• Fits 1976-1991 GM 1/2 ton front, 1973-1980 GM 3/4 ton front, and 1985-1993 Dodge 1/2 ton front
• 6 bolt holes
• 2.00″ and 1.625″ bearing journals