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They provide higher power and torque transmission
The unique
The main difference is that there is an open area under the plenum chamber
solving issues associated with the weak pressed steel plate bases
GM Turbo 400 TH400 Aluminum Tailhousing Without Bushing They provide higher power andThese 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.
US$ 150.00
US$ 49.99
US$ 44.00
US$ 100.00
US$ 92.00
US$ 110.00
