me and my buddy got to noticing that his stock rims let his hubs stick out about an inch. my not stock rims (on it when i got it though) stick out about an inch past my hubs. obviously i have more (or less because i don't know which is which) backspacing than he does, and i've never had any problems with everything. i have however noticed that many people seem to swear up and down about some exact number that should never be compromised. mine is 72 fj40, his is 77 fj40 any thoughts or advice?