AAM Makes Helical Gear Limited Slip Differential Case 
Available For GM 8.6" Rear Axle

AAM Makes Helical Gear Limited Slip Differential Case 
Available For GM 8.6″ Rear Axle

AAMAmerican Axle & Manufacturing (AAM), a leading manufacturer of axle components, driveshaft components and repair kits for OE vehicles, has announced the availability of a helical gear limited slip differential case (AAM part #40135974) for 1999-2015 GM pickup trucks with an 8.6” rear axle.

AAM’s limited slip differential case is not a locking differential case, but does provide many traction enhancing capabilities under most driving conditions, especially for vehicles equipped with traction control systems. To manufacture the 8.6” limited slip differential, AAM utilized the same TracRite GT technology it designed into the 11.5” limited slip differential for 2001-2011 GM pickup trucks.

“Since this differential uses helical gears, there are no clutch plates to wear and no friction additives are needed,” explained Greg Marsh, AAM engineering manager. “The TracRite GT is compatible with ABS, traction, and stability control systems.”

Marsh said the TracRite GT provides maximum torque bias, without causing a shutter throughout the life of the vehicle. The TracRite GT torque bias is proportional to the throttle, providing a smooth application of torque to the wheels.

AAM differential cases are machined and assembled to the high quality standards and tolerances that original manufacturers require. They are designed and tested for each specific vehicle application. Low pinion flange run out, a key specification, is assured for maximum quietness.

AAM parts are the same OEM production parts many shops have come to demand when installing replacement parts. AAM parts fit right, install right and perform right the first time. For more information and to find a local distributor, visit www.demandaam.com, call 313-758-4176, or email [email protected].

You May Also Like

AWD and ABS Services

AWD is always engaged and with the ABS brake modulator, can perform like systems with limited-slip differentials.

Many AWD systems came onto the market in the 1990s. Unlike 4x4 truck systems of the day, these systems were always engaged. Many of the early systems used electro-mechanical ways to manage the distribution of power to thefour wheels. 

Most of these systems used viscous differentials and limited-slip differentials with special fluids inside. These components were prone to failure and are expensive to manufacture. The performance of these systems could also be challenging to control with sensors and actuators.

Grinding/Rubbing Noise While Braking At Or Below 10 MPH

This tech tip involves complaints about brake noise in a Ford Escape Hybrid’s system.

Transmissions – CVT

Knowing what the common issues are & understanding the options available to isolate & fix problems are the keys to success.

Simplifying AWD Systems

No matter the manufacturer, there is almost always an all-wheel drive (AWD) option.

Manual Transmission Service

Parts that wear out must be replaced.

Other Posts

Transmission Fluid Hydraulics

You need to know how transmission fluid flows inside an automatic transmission.

Advanced Wheel Bearing Diagnostics

Can a bump set a wheel speed sensor code?

How Well Do You Know Your Driveshaft?

There are three types of modern driveshafts with multiple configurations.

Transmission Service

The following is an example of a dishonest vehicle and how to go about catching it in its lie.