Note: TH350, Power Glide, Muncie, 700R4 trans uses 3-1108R mount (3.750"), TH400 uses 3-2268 mount (4.250") Specify transmission type. Note: Material specs include 1018 mild steel and 1020 DOM tubing. Be sure you are ordering what you need or want. The item "1955-57 Chevy Belair Engine and Transmission Mount Kit, Stock Engine Location" is in sale since Friday, September 11, 2015. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Engines & Components\Motor Mounts".The seller is "performanceonline-pol" and is located in Corona, California. This item can be shipped worldwide.