The rims I have are 16x6 with 3.5" backspace. The original rims were 16x4.5 with 3" backspace (2 15/16 actually).
The 16x5 would look a lot closer to the original size.
I have Firestone 215/75R16 tires. I purchased them because they were $94 each. I wanted 225/85R16, which would have been about 2" taller, but I couldn't find any at an affordable price.
