Welcome fellow Ferd / GMC owner . My daily transport is a ferd but one of my stovebolt stable trucks is my '52 GMC 1 1/2 ton "Toto" . I like the GMC's over the chevys but they are harder to find some types of parts for . Check with Jim Carter classic parts / LMC Truck or one of the many old truck parts catalogs / on-line sites . Window glass is avaliable from them and most other parts . Search the forums archives for many answers . Lots of good help on this site so be sure to ask for it if you need it . ED H