OER Parts offers a wide selection of Weatherstrip for your 1966 GMC G1000 Series. OER Parts offers 1966 GMC G1000 Series Body Gaskets & Seals, 1966 GMC G1000 Series Complete Seal Kits, 1966 GMC G1000 Series Convertible Seals, 1966 GMC G1000 Series Door Seals, 1966 GMC G1000 Series Engine Bay, 1966 GMC G1000 Series Firewall Seals, 1966 GMC G1000 Series Stoppers & Bumpers, 1966 GMC G1000 Series T-Top Seals, 1966 GMC G1000 Series Trunk Seals, and 1966 GMC G1000 Series Window Seals.