OER Parts offers a wide selection of Mounting Straps for your 1957 GMC All Models. OER Parts offers 1957 GMC All Models Fuel Tank Hanger with Strap, 1957 GMC All Models Fuel Tank Mounting Brace, 1957 GMC All Models Universal Fuel Tank Anti Squeak Set, 1957 GMC All Models Fuel Tank Straps, 1957 GMC All Models Stainless Steel Fuel Tank Straps , and 1957 GMC All Models Fuel Tank Strap Mounting Bolt Kit.