kuhn2373

ok i have 2000 xj 3 inch lift want 31x1050x 15 on 15x 8 what backspacing so no rub i want it to have little wider look i was told to use 4:75 backspace but i was wondering if 4 backspace would rub on the fenders dont want to buy a rim twice

s14unimog

no no... You would want a lower backspacing value to make the tire stick further out. Backspacing is the distance from the hub mounting face to the inner lip edge. So I would look for a 4.0" or 3.75" for a 31x10.5 and 8" wheel.

Tom95YJ

My current wheels are a 4in bs my new wheels I am installing are 3.75. I'll post pics after I install them tomorrow

caged

3.75 (8 inch rim)

DrShaggford

4" for a 10.5!? I'm running 4.25 BS on 12.5 tires(8inch rim) and only rub at full lock. My buddy has 4.25 BS (8 inch rims) and 10.5 tires and doesn't even come close to rubbing. You could probably get away with 4.5-4.75 with no rubbing however I am not certain. 4.25 should be plenty.

kuhn2373

will they rub on the fender at 4 i called a few place to ask becouse i dont know one say 4.5 other says 3.75 i only have 3 inch lift i just dont want to buy wrong rims and they rub i dont want to cut feners

stockli

Mine is is lifted 3 in. The only time I rub is in reverse at half lock.

The very tip of my shoulder lug catches the bottom lip of the flares. Literally it JUST BARELY touches. Im just going to zip that little lip off and it will be all good.

Im running 4.25 back spacing and 31x10.5 BFG KM's

OEJ

here's mine with 4" bs and stock height.

kuhn2373

so the magic number is????????

stockli

4.5 at the most anything smaller should be ok. I think anything less than 4.25 would stick out way to far. Mine already stick out a good 1-1.5 inches on 4.25.

Lowrange2

I run 31x10.50x15's on my DD with a 3" lift and 4.25" BS on an 8" rim. Mine does not rub with the sway bars hooked up.

The picture isn't straight on but you get the point.

kuhn2373

nice xj!!!!!! Thanks for the advice

kuhn2373

what brand rim everwhere i look they offer 4 or 4.75 bs no 4.25

OEJ

I was back and forth with 4 & 4.25. A lot of ur decision should be based ur total lift planned. If ur staying @ 3" then I would agree with the above and get 4.25 to 4.5. I plan on lifting what's in my sig, but I didn't want a wider rim then 8". And a tire taller than a 32 so I went with 4"bs. So imo if ur gonna go biggerthan 3" iwould consider 4" bs. Just some thing to keep in mind.

DirtRoadXJ

go with 3.75" thats what i have and i think it looks awesome. it will give you that wider stance without sticking out too far. i dont have flares on and i love it.