I have tried to do a search on this, but didn't come up with any information that was helpful. I am in the process of trying to determine the wheel size and width for my 55 2nd using a GM rearend. I have NOT yet determined the exact rearend that I will be using. I have a 79 Monte that is 58" hub face to hub face. A 4 wheel drive S-10 rearend that is 59" h-h, and a 70 Chevelle rearend that is 62-1/2"h-h. The factory rear end is 62", so I am assuming that the Chevelle rearend is the one to go with. As far as wheel offset goes, I am also assuming that I would have a better chance of proper fit without having to go with wheel spacers or extreme negative offset wheels. I want to go with either 17" or 18" x 10" wide rims. Has anyone been through this dilemma? I wish I had several wheels and tires to simply bolt on and check, but obviously I don't. Any help on this issue would be great. Thanks, Ed