Ditto on LMC. I just put their 38-2204 GR gray pleated in my 54. The workmanship on the cover was top-shelf...stitching was tight and seams are real smooth. There is a 1/2" foam backing for the pleats which helped smooth things out. Didn't have to do any trimming at all. The pleated cover, although no stock for that year, really sets off the cab. The 54 uses little clips you insert into a channel and they were kind of a pain. I used hog rings on the seat bottom. They don't offer a repair kit so I just used some batten material from WallyWurld to smooth out the voids.
I'm going to add a couple pictures to my shoebox of the finished look!
