Compatibility: Transmission Crossmember Compatible with 1978-1988 GM-2 G-Body Chevrolet Monte Carlo, Chevrolet Malibu, Buick Regal, GMC Caballero, Grand National, Oldsmobile Cutlass, Pontiac Grand Prix/LeMans and Bonneville Coupe 2-Door. Transmission Fitment: This Crossmember fits the GM-2 Transmission Group including Turbo Hydra-Matic 700R4 (TH700R4), 4L60, 4L60-E transmission, Tremec TKO-500, TKO-600, TKO-4615, TKO-4616, TKO-4617, TKO-4618, TKO-5008, TKO-5009, TKO-5201, Borg-Warner T-5, Tremec T-5 #1352-000-251. Premium Quality: Made of high quality steel to ensure reliable performance, solid and durable. Powder coating makes it excellent anti-rust, wear resistance, which can provide you with a long lifespan. High Performance: The transmission crossmember can fix the gearbox, reduce the vibration of the gearbox to the car body, and enhance the stability of the car during driving. It can play a supporting role on the gearbox. Provide better protection for your vehicle. Package Included: 1 x Transmission Crossmember. Includes installation hardware and instructions. Installation mode: Direct screw mount. If the floor pan is too close to allow installation, it may be necessary to replace the body bushings. Professional installation is highly recommended. Compatibility: Transmission Crossmember Compatible with 1978-1988 GM-2 G-Body Chevrolet Monte Carlo, Chevrolet Malibu, Buick Regal, GMC Caballero, Grand National, Oldsmobile Cutlass, Pontiac Grand Prix/LeMans and Bonneville Coupe 2-Door. Transmission Fitment: This Crossmember fits the GM-2 Transmission Group including Turbo Hydra-Matic 700R4 (TH700R4), 4L60, 4L60-E transmission, Tremec TKO-500, TKO-600, TKO-4615, TKO-4616, TKO-4617, TKO-4618, TKO-5008, TKO-5009, TKO-5201, Borg-Warner T-5, Tremec T-5 #1352-000-251. Premium Quality: Made of high quality steel to ensure reliable performance, solid and durable. Powder coating makes it excellent anti-rust, wear resistance, which can provide you with a long lifespan. High Performance: The transmission crossmember can fix the gearbox, reduce the vibration of the gearbox to the car body, and enhance the stability of the car during driving. It can play a supporting role on the gearbox. Provide better protection for your vehicle. Package Included: 1 x Transmission Crossmember. Includes installation hardware and instructions. Installation mode: Direct screw mount. If the floor pan is too close to allow installation, it may be necessary to replace the body bushings. Professional installation is highly recommended.