GForce Crossmembers - RCB3-400
Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - TH400 / 2004R / 700R4 - GM B-Body 1977-90 - Each
GM B-Body Platform,Transmission-Crossmember for B-Bodies 1977-1990 with a TH400 (Short Tail Only) or a 2004RTransmission. Heavy duty Steel, Powder-coated, made to fit Dual Exhaust, and bolt-on in 15 min.