GRIP LS - Gm 12 Bolt Car 4.1

The POWERTRAX GRIP LS - Gm 12 Bolt Car 4.1 is a differential designed for GM 12-bolt car applications, catering to street and strip enthusiasts who desire improved traction without the harsh characteristics of full spools. This locker-style differential offers a balance between a traditional open unit and a welded axle, providing controlled power delivery during acceleration while allowing for independent wheel speed in corners.

Engineered with patented internal clutch plates, the GRIP mechanism progressively engages as torque increases, reducing the bind and chatter typical of traditional clutch-pack designs. The compact cast-iron housing is precision-machined to OEM tolerances, ensuring a reliable fit into existing GM 12-bolt carriers without the need for modifications to axle shafts or housings.

This differential is particularly beneficial for builders upgrading vintage Chevrolet platforms, including F-body, A-body, and mid-size trucks, as it enhances launch consistency and power transfer. While installation may vary in cost depending on the vehicle and shop, the GRIP LS is designed to provide a smooth engagement and tunable bias characteristics for a variety of performance applications.