GMC C3500HD Drivetrains

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
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

Drive shaft pinion yoke corroded or damaged? This pinion yoke directly replaces the original equipment on specific vehicle years, makes and models to restore smooth driving.

Product Features:

• Direct replacement – this drive shaft pinion yoke directly replaces the original equipment on specified vehicles
• Effective fix – replacement restores proper connection between drive shaft and differential
• Rigorously tested – designed and evaluated to assure safe, reliable operation
• Trustworthy quality – backed by team of engineers and inspectors in the United States

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 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

Eaton positraction shim kit for GM 14T.

Product Features:

• Shim kit
• Fits GM 10.5″ 14 bolt truck Eaton positraction

Strap kit for 1480 yoke in Dana 60, Dana 70, & Dana 80.

Product Features:

• u-joint strap kit
• Fits Dana Spicer 60, 70, 70U, 70HD and 80
• 1480 u-joint size
• Includes two straps and four bolts

Product Features:

• Pinion nut washer
• Fits Dana Spicer 80

Replacement pinion nut for Dana 80, 1 7/8″ socket.

Product Features:

• Pinion nut for Dana Spicer 80
• 1 7/8″ socket

Set-up carrier bearing kti (2 bearings, no races) for Dana 70 HD and Dana 80. 469. No return.

Product Features:

• Set up bearing kit
• Fits Dana Spicer 80
• Easily slips on and off carrier journals to allow for easier carrier shim adjustment

Demand genuine Spicer. Dana design, engineering, testing and manufacturing processes all work in conjunction with one another to ensure unparalleled performance that non genuine parts simply cannot deliver.

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
• Crowned raceways and rollers to ensure even load distribution for maximum life
• Industry leading coverage
• Professional technicians know they can depend on National

This drive axle shaft lock C-clip is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

• Direct replacement – this drive axle shaft lock C-clip matches the fit and function of the factory part on specified years, makes and models
• Ideal solution – this clip is a reliable replacement for an original part that is missing or has failed due to fatigue
• Durable construction – this part is made from quality materials to ensure reliable performance and long service life
• Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

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

Dana 50 Dana 60 Dana 70 & Dana 80 roll PIN, 0.225″ DIA, for X/P shaft, 1.87″ LNG.

Product Features:

• Roll pin for Dana Spicer 50, 60, 70, 70U, 70HD and 80
• 0.225″ diameter
• 1.870″ long

Yukon 1350 U/Joint with zerk fitting. 3.625″ snap ring span, 1.118″ cap diameter. Outside snap ring.

1350 & 1410 U/joint U-bolts, 3/8″ X 1-11/16″, kit.

Product Features:

• u-joint u-bolt kit
• Fits 1350 and 1410 u-joint size
• Includes two u-bolts and four nuts

Product Features:

• Standard open carrier case
• Fits GM 10.5″ 14 bolt truck
• 4.10 and down ratio only
• Does not include spider gears

Yukon mini spool for GM 10.5″ 14 bolt truck.

Product Features:

• Fits 10.5″ GM 14 bolt truck
• Provides 100% traction to both wheels at all times
• Installs into standard open carrier case

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

Product Features:

• Cover bolt for Dana Spicer 60, 70 and 80
• 3/8″

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 Dana Spicer 80
• 11.25″ ring gear diameter
• 37 spline pinion
• 12 ring gear bolts
• 4.88 ratio

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

• Includes four quarts of Redline Shockproof oil

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

BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:

• Our control modules feature double wire bonds for better connections, greater dependability and longer life despite being subjected to intense vibration and the tough operating environment
• Copper slug heat sinks provide better heat dissipation to prevent heat from damaging the module
• Our ignition modules will respond to a weak signal from the crankshaft position sensor and begin energizing the coils immediately for better starts in cold weather
• High-temperature polymer housing reducing moisture intrusion and minimizes vibration damage for extended life and improved reliability
• Our ignition modules are durability tested for 500 thermal cycles ranging from -40C to +125C

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 GM 10.5″ 14 bolt truck
• 4.10 ratio and down only
• Clutch style positraction
• Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
• Fully rebuildable
• Assembled in the USA

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!