Were the frames for GMC and Chevys different. For example the front cross member where the motor mount is. I looked at a 56 GMC which belong to Mr. Wingfield here in Richmond and his front cross member was completely different from mine. I've owned a 55 56 and a 57, all Chevys, in my past and they all had the same cross member as is on my 58 GMC. So was there a different frame or is mine a Chevy with a GMC cab. Thanks in advance
Larry
