• Fits Models: Regal, LeMans, Chevelle, Cutlass, El Camino, Malibu, Monte Carlo, Century, Grand Prix, Grand Am, GTO, Vista Cruiser, Laguna, Sprint.
• Fits Years: 73-77
• This crossmember will not fit a 73-75 EL Camino with the boxed frame rails.
• This crossmember will not fit Laguna with boxed frame rails.
• Fits Transmissions: 700R4, 4L60, Pre-1996 4L60E, TKO-500, TKO-600, TKX, 2WD-AR5.
• This crossmember will fit 1996 and later 4L60E, and 4L65E transmissions for LS engine swaps.
• We recommend a polyurethane transmission mount. TheGMTMis sold separately.
• For the 1973-1977 hardtop frames the distance between the crossmember frame mounting holes is 51-1/8″. To ensure proper crossmember selection be sure to measure your frame before you order.

Boss Hog Torque Converters recommended for this application:48402, 48442, 48443, 48441, 48401, 48403, 48453, 49454, 49452, 49451, 49462, 49463, 49752, 49754