BMR TH400 Transmission Conversion / Torque Arm Relocation Crossmember Black (TCC010H) - 1998-2002 F-Body LS1
Swapping a heavy-duty Turbo 400 automatic transmission into your LS1-powered Fourth Gen muscle car is a straightforward upgrade with a Torque Arm Relocation Crossmember from BMR Suspension. Factory stamped-steel crossmembers lack the durability required for high-horsepower builds and cannot accommodate high-performance racing transmission conversions. BMR’s high-strength tubular crossmember replaces the flimsy factory component, providing a rock-solid structural foundation that sets the correct mounting height and drivetrain angle for your TH400 gearbox behind an LS1 engine combination.
Engineered to withstand the intense loads of aggressive street performance, hard-launching drag racing, and demanding handling applications, this black hammertone powdercoated crossmember is manufactured right here in the U.S.A. from robust 1.25-inch DOM steel tubing and high-strength, laser-cut steel plate. By shifting the torque arm mount completely off the transmission tailshaft housing and onto the rigid crossmember frame, it prevents catastrophic casing breakage under heavy stress. This heavy-duty construction eliminates crossmember flex, ensuring your drivetrain stays properly aligned for predictable, repeatable chassis reactions. Installation takes approximately 1 to 2 hours.
NOTE: As shipped, this crossmember is designed to work with BMR torque arms. It may be used with stock or other aftermarket brands by simply replacing the front torque arm bushing with a compatible unit.
Features
- Built from heavy-duty 1.25-inch DOM steel tubing with laser-cut steel plates for absolute rigidity
- 100% MIG-welded construction delivers maximum strength and structural stability
- Direct-fit design engineered specifically for GM TH400 automatic transmission swaps
- Optimized for factory LS1 engine combinations in 1998-2002 Fourth Gen Camaros and Firebirds
- Relocates the torque arm mount to the crossmember to protect the fragile transmission tailshaft
- Removes factory crossmember deflection to preserve stable, consistent drivetrain alignment
- Durable, long-lasting black hammertone powdercoat finish proudly designed and made in the U.S.A.
Fitment
- 1998 Chevrolet Camaro / Pontiac Firebird (LS1)
- 1999 Chevrolet Camaro / Pontiac Firebird (LS1)
- 2000 Chevrolet Camaro / Pontiac Firebird (LS1)
- 2001 Chevrolet Camaro / Pontiac Firebird (LS1)
- 2002 Chevrolet Camaro / Pontiac Firebird (LS1)
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