New th400 parts,3 to 5 free hpower.

[chris718]

Testing has shown installing this gasket between the servo and case will produce a gain of 3 to 5 hp to the rear wheels.The shim allows the rear servo to retract away from the band when not applied reducing the bands drag on the rear carrier.New aluminum governor delete plate available with vent tube to aid in catch can routing.And the Killer pro mod 400 input shaft compared to a stocker.35 spline converter end ,37 spline drum end.