TCI stamped flexplates for Ford and Chevy applications are .035" thicker than stock, and the starter ring is welded to both sides of the flywheel for additional strength. Constructed from a high tensile strength material, these flexplates resist elongation and cracking. 168-Tooth flexplates have GM dual bolt patterns and are sized for stock 3/8" mounting bolts but can be easily drilled for 7/16" diameter high performance torque converter applications. Ford applications are balanced specifically for their appropriate engine/transmission combination.