OER Parts offers a wide selection of Cooling System Components for your 1965 GMC 2500 Series. OER Parts offers 1965 GMC 2500 Series Radiator Hardware, 1965 GMC 2500 Series Radiator Supports, 1965 GMC 2500 Series OE Radiator Supports, 1965 GMC 2500 Series Radiator Filler Cover, 1965 GMC 2500 Series Radiator Support Opening X-Brace, 1965 GMC 2500 Series Radiator Support Bracket Set, and 1965 GMC 2500 Series Radiator Support Gussets.