Backspacing???

[97SPORT_FF]

I am buying rims tomorrow and it gave me a choice of 3.75" backspacing or 4.5" backspacing...... Which is correct? I am getting the blk rock crawlers.. Thanks

 

[FROADER]

Oh sam...

What size tires are you getting? Both will work as stock backspacing is 4.5. The 3.75 will stick you out 3/4" from stock. If you're planning on getting bigger than stock tires (31s or bigger) I'd go with the 3.75."