JEGS Mid-Mount Plate is precision cut from .120" mild steel plate for strength to minimize the inherent engine and driveline twist in high horsepower applications. Includes gussets, mounting brackets and hardware all in one kit. Measures 29-1/4" wide. May require some trimming and will require welding. Designed for use in conjunction with a front motor plate (sold separately). Automatic transmission applications will require use of 555-82505 Torque Converter Shim Kit (sold separately). Fits SB-Chevy (except LS), BB-Chevy and 90° V6-Chevy.