GM 10.5" 14 Bolt 4.10-Down 30 Spline TorqueWorm LSD Limited Slip Differential and are available in chrome

and are available in chrome or cast aluminum

This Speedmaster 300M steel crank gear

Designed for Speedmaster starters

Those crankshaft are x-rayed and ultrasonically tested

GM 10.5" 14 Bolt 4.10-Down 30 Spline TorqueWorm LSD Limited Slip Differential and are available in chromeThe 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