Crossmember Universal rear transmission mounts and heavy duty tube crossmember. Fit most GM,Fits Ford, and Fits Mopar manual and auto transmissions. Raw finish. Fits frames up to 38" wide. Note: May require re-drilling of the mount holes when used withFits Ford C4/C6 trans cushion 910-18017. Bolt in Ends If you dont want to weld on our engine or transmission crossmembers, use a pair of these bolt-in ends. These slip over our round tubing crossmembers and bolt to the frame.