Modern Transmission Compatibility: Update your '55 to '57 Compatible with Chevy car with this tubular transmission crossmember, enabling the use of modern automatic or manual transmissions. Hassle-Free Installation: This kit offers a straightforward, no-weld installation; just drill a few bolt holes and you're good to go. Robust Construction: Built with a sturdy 2" OD steel tube, the crossmember ensures rigidity, even in the most demanding conditions. High-Quality Rubber Mount Cushion: OEM-style rubber transmission cushion designed for '58-'82 GM transmissions, with a tough, hardened steel plate & inserts, bonded with the premium Chemlock agent for an enduring rubber-to-metal bond. Precise Specifications: The crossmember measures 32-7/8" in width end-to-end, with mounting holes 3" apart. Features an S-bracket to ensure the perfect mounting surface and alignment for your transmission. Crossmember On your '55-'57 Compatible with Chevy car, the front motor mounts are at the front of the block and the rear mount attaches to the bellhousing. This works fine for original use, but makes it hard to swap in a different tranny or add belt driven accessories to the front of the engine. This mount kit is the solution! Uses common mounts. No welding, but drilling is required. Mounting a TK500 or TK600 may require risers/spacers to get proper driveline angle. Rubber Mount Cushion OEM-style rubber transmission cushion for many '58-'82 GM transmissions including TH350 auto, Muncie, Saginaw, and others. Meets or exceeds OEM specifications. Rubber formulation provides abrasion resistance and aging stability. Tough, hardened steel plate & inserts. Chemlock bonding agent ensures superior rubber-to-metal bond.