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Old 04-17-2009, 01:29 PM   #1
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16x8 backspacing needed?

sorry if this has been posted before, but I tried searching for a while and couldnt find a good answer.

right now im running 35x12.50x16 (315/75/16) on stock moab wheels with 1.25" spidertrax spacers. now, the stock backspacing is 5", so with the spacers that would make it 3.75" correct? or am I totally off, and a 4" BS on say a soft 8, would bring the tire out more than the 3.75 on the moab? reason Im asking is that I seem to be rubbing the LCA on the driver side just slightly under the right circumstances, and I would like to change wheels if it would make it go away, BUT I cant seem to find any 16x8 steelies with a TJ bolt pattern with a BS of less than 4", and even then, most of the ones I find are like 4.5".

I dont care if the the tires stick out from the fenders since it doesnt matter here in las vegas, and I dont mind the "wide" look, all I care about is not rubbing. so will a soft 8 in 16x8 with 4" BS bring it out farther than the moab with spacer?
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Old 04-17-2009, 01:52 PM   #2
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The less backspacing you have, the further out of the wheel well the tire and wheel will protrude. So a wheel with 3.75" of backpacing will stick out 1/4" more than a wheel with the same width but with 4" of backspacing will.

Backspacing is that distance between the rear (inner-most) edge of the wheel and the backside of the wheel's mounting flange surface that is next to the rotor.

For 12.5" wide tires, 3.75 to 4" of backspacing is fine. I personally prefer 4.5" so the tire is tucked in a bit more but that requires you to insert two washers on both of the steering stop bolts so the tire's inside sidewall won't rub on the control arm when the steering wheel is cranked all the way over left or right.

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Old 04-17-2009, 01:53 PM   #3
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i run 3.75 and i love the way it looks
99 sahara :: 2'' coils (front), jks acos f&r, jks front trackbar, jks bl/mml, RE monotube shocks, hp30/d44, 33'' procomp mts, 15x8 eagle alloy 187s, hella optilux fogs, raingler nets, & more random junk::

06 charger r/t :: 5.7l hemi w/ flipstick, tinted windows, leather heated seats, 2 kenwood 12s =D my new baby ::
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