Th 400 Transmission Case Middlecast Gm Bare

the Aeroflow performance transmission case is designed to replace the stock case on an automatic transmission used for high Aeroflow performance and street applications. Manufactured 2-piece cast from heavy-duty 356-t6 cast aluminium. This case has been developed to eliminate all weak points found in the original hard to find gm transmission case. It accepts all factory gm components both internally and externally. We recommend to match this transmission case with our bellhousing (af72-2200) and rear extension housing (af72-2240) both sold separately.