the 55/6 fenders are identical, 3100 up to 3800 ... diff between Chev and GMC is just in hole placement for grill and park light mounting, otherwise identical shape .... the 57 fender grill mount ridge has a small depressed area around the grill mount holes ... effectively, the 55-57, 3100-3800, Chev or GMC fenders are interchangeable with minor work, over there grab what you can get
Bill
