Speedmaster PCE204.1002 Fits Ford 9" 31 Spline TorqueWorm Helical Gear Limited Slip Differential Truetrac LSD

The Torque Worm is a torque biasing 6 pinion gear type limited slip unit. This is a preloaded unit allowing for a faster reacting unit. Unlike our competitors that only use 3 or 4 pinion gears. 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 such as V8 SUPERCAR. The outer cases made from 8620 Chrome-Nickel-Moly steel and the case hardened for long life and improved strength. The Torque Work unit is available in 28, 31 and 35 spline counts. The Ford 9 Inch axle may have been discontinued by Ford in the 80's but thanks to its large 9" ring gear, drop out style 3rd member, axle shafts, and easy maintenance, it has continued to grow in popularity and now has more aftermarket support than any other axle.