Interchangeable parts

[BlakeSnelgrove]

Hey guys this is my first time posting with a question and my first time posting at all. But I will give you a little background first I've got a 67 small window cab stepside pickup that I bought about a year ago for five hundred bucks. It wasn't in the best of shape but I thought it was a good deal for the price and I saved it from the crusher. I've done very little work other than pull the bed off and the front cap. So here comes my question my fenders are a little beat up and I've found pretty decent fenders on a gmc and was wondering if the fenders would fit on my '67. The gmc has no reflectors so it would look right on my '67 if they will fit. Thanks again guys for taking the time to look and helping me out!