GM Turbo 400 TH400 Billet 300M Steel Input Shaft and lock washers

and lock washers

All of our components are heavy duty performance upgrades of their stock counterparts but are manufactured to the original tolerances and specifications

and 3/8 in

is available in many front and rear axle applications including both solid axle and IFS / IRS configurations

They have injector bosses precisely positioned and machined for excellent fuel spray patterns and maximum power

GM Turbo 400 TH400 Billet 300M Steel Input Shaft and lock washersHigh horsepower and hard launches at the drag strip can cause tremendous stresses on the internal transmission components. Speedmaster Input shafts can withstand the stresses and the added power.