I have become the new owner of a 1976 GMC Vandura Midas class C motorhome. My wife and I have been working on getting it restored and ready for the road. It is now time to put some new rubber on this rig. The current tires are 8.00R16.5 D. I was looking at a set of 8.75R16.5 D and was wondering if these would work with dual rear wheels on my coach. My question is will the increased width of the tires cause interferance between the 2 wheels of the set of duals? The 8.75 tire size seems to be more available than the 8.00, this is why I am considering the change. Well of course there is always the $$$ factor too which is always a part of the consideration too. We are very excited to get on the road but are really going over this thing with a fine toothed comb.