Detroit Truetrac - GM 9.5

The Detroit Truetrac differential carrier for GM 9.5-inch axles is a purpose-built limited-slip differential designed for heavy-duty vehicles and off-road platforms requiring dependable traction and load distribution. Originally engineered for law enforcement and military fleet vehicles, this 33-spline steel carrier improves cornering control and reduces tire slip compared to open differentials, making it essential for operators running demanding terrain or towing applications where axle reliability directly impacts mission success.

Built from heat-treated steel, the Detroit Truetrac carrier uses a mechanical clutch-pack design that automatically adjusts torque delivery between wheels based on traction demand—no electronic components, no maintenance headaches. The 33-spline configuration ensures robust engagement with GM 14-bolt axle shafts and provides superior load-carrying capacity for vehicles operating at or near maximum payload. With a weight of 44.65 lbs, this carrier integrates seamlessly into OEM or aftermarket 9.5-inch housings without requiring additional modifications, delivering predictable handling characteristics across pavement, gravel, and mud.

This differential is ideal for operators running Chevrolet, GMC, or Ford trucks with GM 9.5-inch rear axles who need improved acceleration traction and cornering stability without locking differentials' harshness. Installation requires axle service by a qualified technician familiar with limited-slip carrier replacement—standard carrier swap procedure. The Detroit Truetrac excels in mixed-use vehicles balancing daily highway driving with periodic high-demand work, delivering the traction benefit when needed while maintaining street manners on paved surfaces.