55-59 Chevy/GMC Windshield Gasket W/Out Trim Groove. This windshield gasket is used with 55-59 Chevy/GMC trucks with windshields and that do not have a factory chrome trim around the glass. Windshield is easily installed by putting the seal on the glass first, then using the "rope-in method" pulling the rope from inside the cab. Gasket is constructed from ozone resistant EPDM and made to original OE specs. Limited Lifetime Manufacture Warranty.