American Axle

Technical Support

AAM Product Technical Tips

Eliminate Come-Backs


Only original equipment quality components are guaranteed to meet the same specifications as the parts they replace. OE components mean performance to the vehicle manufacturer's standards ... to satisfy customers and eliminate come-backs and rework. In addition, AAM Aftermarket's OE components help you:


Keep Promises


Reflecting AAM's commitment to the repair market, we maintain a distribution center stocked with a large inventory of O.E. quality components. That means we can deliver the quality parts you need, when you need them.

Product Safety Information

AAM driveline products are designed to meet OEM vehicle manufacturer's design and performance specifications. Improper conversion or alteration of these products can damage the axles, driveshafts and/or other vehicle systems. Contact the OEM manufacturer for specific directions and guidelines.

Axle and Driveshaft Components

Warning - Failure to follow these instructions could affect vehicle performance and/or safety and result in personal injury or death.


Do not convert or alter AAM axles except in accordance with vehicle manufacturer's instructions.

AAM axles are designed to meet OEM vehicle manufacturer's design and performance specifications. Improper conversion or alteration of these axles can damage the axles and/or other vehicle systems. Contact the OEM manufacturer for specific directions and guidelines.


Do not change axle gear ratios on vehicles with anti-lock braking systems except in accordance with the vehicle manufacturer's instructions.

Vehicles with anti-lock braking systems may utilize sensors and tone rings with the axle housing to ensure the functioning of the anti-lock brakes. Improperly changing the axle ratios may defeat the anti-lock braking system. If changing axle ratios will require changing the location of the tone ring on the ring gear flange to the location of the sensor in the axle housing, contact the OEM manufacturer for specific directions and guidelines.


Do not reuse or substitute ring gear bolts.

If you reuse a ring gear bolt or substitute an inferior quality bolt, the bolt may loosen or back out of its threaded hole, causing severe damage to the axle gears and other components and possibly resulting in a sudden "locking up" of the axle and loss of control of the vehicle. Always use new bolts specifically recommended for the application and install bolts using proper tools and torquing to the proper specifications.


CAUTION - Use of non-AAM parts may result in product failure and personal injury.


AAM driveline products are designed for each model vehicle, and manufactured and tested for safety and best performance. Replacement parts from other manufacturers may not be made to AAM's rigid quality standards. To be sure you're getting AAM quality, always use genuine AAM parts.

TracRite Differential Portfolio

AAM Aftermarket brand products provides an array of Locking or Limited Slip Differentials for those applications where traction enhancement is a must. The TracRite™ Series of limited slip and locking differentials provides you the opportunity to give the truck owner the traction they want and need in that severe weather and off road environments. AAM Aftermarket offers three versions of TracRite differentials - TracRite™ GT, TracRite™ GTL and the TracRite™ EL.


What is a Locking Differential?


  • In the unlocked mode the locking differential acts as a normal differential, which could be either an open or a limited slip differential
  • In locked mode the left and right axle shafts are coupled together, providing maximum traction with the ground
  • 100% of input torque can be applied to both wheels
  • Typically used at low vehicle speeds when maximum traction is required
  • In unlocked mode is compatible with ABS, traction and stability control systems. When in locked mode will not allow left to right speed difference, so reduced performance of these systems may be expected

AAM Universal Joint Series Dimensions

American Axle