pm sent,the gaskets are different because Crestlines and Customlines have a groove for the trim.Sedans,and ranchwagons interchange, hardtops and converts do not work in sedans.
'54 Crestline what....4 door, convertible or 2 door hardtop? You don't say which body style. If the Crestline is a 4 door sedan, the windshield gl*** will fit in a Mainline 2 door or 4 door sedan. However, the Crestline hardtops and convertible gl*** is about 1" shorter in height. As pointed out by Jeff B. the rubber seals are different. Alan S. Freeman
The Jalopy Journal
