Let me first start off by saying thanks to "arowhed" and everyone else for the great information listed in this post. My question is this.... I have a 1966 Grand Prix and I believe that in 1966 the rear axle was lengthened by approximately 3/4 of inch on either side... How does this affect the rim recommendations? Also, there is a difference between back spacing and offset, so what is the offset of the wheels when the rim has 5.50 inch of backspacing. I am trying to figure out how much clearance is in the front so I don't have to cut off the factory fender skirt attachments... Any help is greatly appreciated. Thanks.
