Chrysler 273-360 Engines with 727 & A904 Transmissions, Steel; Provides a solid connection between the transmission and the chassis; Eliminates torsional chassis stress, block twisting, and broken transmission cases; Includes flywheel shims to ensure accurate torque converter to front pump engagement; Allows easier transmission swaps and aids clutch operation; Universal frame mounts included; Designed on CAD equipment for a precise fit and easy installation; CNC laser cut to eliminate warpage from metal stamping; Universal Frame Mounts Included, welding Required; Dimensions: 30" x 14-13/16" x .090" thick