The Speedmaster PCE634.1006.01 is a billet aluminum full manual valve body designed for GM TH400 automatic transmissions. The full manual design puts gear selection entirely under driver control, eliminating automatic upshifts and delivering more direct, consistent power transfer — ideal for performance driving and racing applications.
Crafted from billet aluminum and finished in silver, this valve body offers improved durability and a clean, purposeful appearance over stock components. Designed as a direct replacement for TH400-equipped vehicles, it is a straightforward upgrade for enthusiasts looking to maximize control and performance from their existing TH400 transmission.
MPNPCE634.1006.01
UPC840136565918
