Own a 1963-1966 3/4 ton truck and need to replace the cab mounts? If so, Brothers has you covered. This kit allows you to convert your truck to readily available 1/2 ton cab mounts. Kit includes a 1/2 ton cab mount kit, rear cab mount conversion frame brackets and hardware. Own a 1963-1966 3/4 ton truck and need to replace the cab mounts? If so, Brothers has you covered. This kit allows you to convert your truck to readily available 1/2 ton cab mounts. Kit includes a 1/2 ton cab mount kit, rear cab mount conversion frame brackets and hardware. Compatible with 1960-1966 Chevrolet/GMC C20/K20 Compatible with 1960-1966 Chevrolet/GMC C20/K20