After painting up my truck and installing new weatherstripping, I noticed I can actually see daylight thru the top inner corner of my door. I was riding shotgun with my friend in his restored '56 and noticed the same thing. Keep in mind that the door is aligned on the outside, as well as I could get it and I don't think this thing suffered some sort of cab distorting event. So, I'm thinking the above post by jockbolter is a pretty good description of what we are up against with these old pieces of farm equipment. In my mind, I do another incarnation of this truck that includes either laying up lead in those spaces or perhaps lamination with sheet metal to reduce those gaps and actually make the weatherstripping a functional component. And, I thought about using that spray foam normally used in residential and spraying in the various body cavities and channels but decided it may not be a good idea in case it prevents those areas from draining. Glad to see someone confirmed this and that I hadn't made that bonehead mistake. (no offense to our friend from the great isle of the north). For now I'm thinking of laying up more weatherstripping as long as I can make it look like it belongs but haven't gotten around to it.
