• Fits Models: Caprice, Impala, LeSabre, Oldsmobile 88, Bonneville, Parisienne, Catalina
• Fits Years: 77-90
• Fits Transmissions: 700R4, 4L60, Pre-1996 4L60E, TKO-500, TKO-600, TKX.
• This crossmember will fit 1996 and later 4L60E, and 4L65E transmissions for LS engine swaps.
• The RCB3-700 is designed for the 700R4 / 4l60E transmission with a case mount transmission mount. For a 700R4 with a tailshaft mount purchase theRCB3-400 crossmember instead.
• Engineered with 2 mounting slots to accept a standard height transmission mount.
• We recommend a polyurethane transmission mount. TheGMTMis sold separately.

Boss Hog Torque Converters recommended for this application:48402, 48442, 48443, 48441, 48401, 48403, 48453