GM Turbo 400 TH400 Output Shaft, Yoke, and Tail Housing Kit - 40 Spline high-carbon steel construction to eliminate

high-carbon steel construction to eliminate the stretching and breakage often associated with stock bands

Speedmaster planetary gear sets are available in long and short versions

Standard valve sizes are 2

Designed to complement any space

The right choice is critical for your engine and your wallet--choose Speedmaster iron distributor gears

GM Turbo 400 TH400 Output Shaft, Yoke, and Tail Housing Kit - 40 Spline high-carbon steel construction to eliminateThese Speedmaster tailshaft housings are designed to fit the stock Turbo 400 transmissions. They are five times stronger and more ridged than stock because they are made from aircraft grade aluminum alloy. Featuring thicker walls and more gusseting than any other manufacturer.