Detroit Speed C-Notch - Rear - Frame Rails - 3/16 in Thick - GM Fullsize Truck 1967-72 MT650BK clean four point system is

clean four point system is DOT approved

power steering coolers

or any item needing a smooth radius curve

1-1/2 in Diameter Tube

Weld Wheels

Detroit Speed C-Notch - Rear - Frame Rails - 3/16 in Thick - GM Fullsize Truck 1967-72 MT650BK clean four point system isFits 1967 1972 C10 with truck arms and coil spring rear suspension only. This kit also fits some 1967 1972 GMC C15 trucks, but only if it had the factory optional truck arm and coil spring rear suspension. 100% Bolt on product. Cutting Required Provides frame rail clearance when lowering your ride height Improves frame rigidity at coil spring mounting point 3 16 inch thick steel construction Includes C Notch brackets, bump stops, mounting hardware,