BMR transmission conversion crossmembers allow you to take advantage of todays technology and install newer late model overdrive transmissions into your muscle car. these no-hassle, bolt-incrossmembers can also replace yor OE TH350 or TH400 crossmemberwith a stronger lighter version that provides more exhaust clearance. Additionally, our crossmembers are designed with brackets for futher upgrades to BMR's Torque arm suspensionkits. All brackets are lazer cut and CNC formed to provide precise tolerances and trouble-free installs. Kit TCK005 also includes the necessary firewall bracket to install the clutch master cylinder and the clutch pedal adapter bracket. A BMR transmission conversion crossmember is required when installing a BMR torque arm suspension.