These ultra-trick Hurst transmission cross-member is specifically designed for 1967-1969 Chevrolet Camaro/Firebirds with BBC motor mounts and a Tremec Magnum 6-speed conversion. These are designed and fabricated from thick steel plate and heavy gauge steel tubing for a perfect fit and finish that has no equal. These bolt-in units are much stronger than the factory stock cross-members and help maintain the correct transmission and driveshaft angles. Precision cut and fully MIG-welded, then given a durable black powder coating finish to last a lifetime and give you peace of mind knowing you're buying the best parts available for your Tremec Magnum 6-speed conversion. You can surely trust the company that originally started out making conversion mounts back in 1958, Hurst Performance.