Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - TH400 / 2004R / 700R4 - GM B-Body 1977-90 - Each Brand-G FORCE CROSSMEMBERS MPN RCB3-400 . **NOTE: Fits Transmissions: TH400 Short Tail, 2004R, 700R4 with B-Body tailshaft Mount Truck Freight NO