1978-1983 G-Body Crossmember- 4L80 with frame extension | RCG-4L80K
- Fits Models: Malibu, Monte Carlo, El Camino, Cutlass, Grand Prix, Regal, Century, LeMans, Caballero, Bonneville
- Fits Years: 78-83
- Fits Transmissions: 4L80E, 4L85E
- We recommend a polyurethane transmission mount. The GMTM is sold separately.
- G Force has developed a frame extension, FE-100 to duplicate the longer frame on these early generation vehicles. The RCG-4L80K is pre-packaged with the frame extension.