1987 - 1991 Ford F-350 Complete Weatherstrip Seal Kit. Kit consists of all the weatherstrip that is available from precision which includes: press on door weatherstrip, upper door seals, upper channels, divisions post glass run, vent seal kit, chrome style rear window seal, beltline kit. ???Our product is made from the original specs and from high quality ozone resistant materials to fit your vehicle. *Note. This weatherstrip will not work on the original OE sliders*