Pete,
I used u.s.body.com for my rear fenders on my 52 an they fit darn near perfect right outta the box..mine were not pre-drilled just had the hole outlines in the glass from the mold ...but they were near perfect and alighnment to the runnin boards was really good.
me an my son installed em in no time.
you can check em out in my photo bucket on Casper I think they fit really well.
Tim


1952 Chevy Shortbed

Photos in Photobucket

If It Aint Broke Fix It Till It Is!