i know theres posts on this but didnt want to search, whats the stock backspacing and is 3.625 in. of backspacing too much.

 

on a 2WD, 4"...


3 5/8" is close enough to 4" so they should fit pretty well

 

otherwise 4x4's have about 6" of backspacing stock, so 4" would mean the rim sticks out 2" further than stock. Which can look good depending on the height of tire you are going with you could run into tires rubbing on the fender lip. Hope this helps.