GM 8.875" 12 Bolt 12T Truck 30 Spline LSD Limited Slip Differential Features accurate magnetic pickup that

Features accurate magnetic pickup that never requires adjustment along with an easy-to-adjust mechanical advance mechanism

The failure of a U-joint or driveshaft can have big consequences

Deluxe Interior

Increase fuel volume and better fuel distribution with these Speedmaster fuel rails

Speedmaster has redesigned the power gear sets to incorporate six pinion gears

GM 8.875" 12 Bolt 12T Truck 30 Spline LSD Limited Slip Differential Features accurate magnetic pickup thatThe TorqueWorm is a torque biasing 6 pinion gear type limited slip unit. This is a preloaded unit allowing for a faster reacting unit. The use of 6 pinion gears means the stress on gears is spread over a greater surface area, reducing the load on all internal components. The internal components are made from EN36 Material as used in racing. The outer cases made from 8620 Chrome Nickel Moly steel and the case hardened for long life and improved