White Box transmission adapter is part of the most comprehensive line of GEN-3 Hemi swap components available for the Mopar B-Body. The WB130024 crossmember adapter plate allows the installation of the popular 8HP70 8-speed (car automatic transmission only) when used with the WB130021 Transmission Crossmember. The WB130024 Adapter Plate bolts directly to the factory transmission mount location with the supplied hardware and eliminates the daunting task of figuring out correct drive line inclination and U-Joint operation angles. WB130024 transmission adapter plate is designed for use with GM style transmission mount for its compact design that allows for better ground clearance than the factory crossmember (use w/ Hooker part # 71223029HKR or 71223030HKR - sold separately). Solid 3/16" Steel construction with raw steel finish.