Bow Tie Bits always had used parts for me, and some new also. Best to call him to ask, he doesn't like internet that well. They do have site to get link if you wish. Brake parts are the hardest to find, cylinders and such. Rest is pretty much same as smalleer trucks, and springs and suspension parts at local shops that specialize in that stuff. Best to find one in business a long time, or has old timey counter guy that knows the parts. There is Obsolete Chevrolet Parts too, but need exact GM part number to ask.
