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Old 05-17-2013, 11:10 AM   #1
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Goodyear Wrangler MT/R's

Hi, folks! I've got a '99 TJ who needs some upward motion in the world of tires. I've been looking at going to a Cragar 16" steel wheel, and kinda want to throw some MT/R 33x12.5r16's on it.

The questions:

The Cragar has a 6" back spacing. Is that enough to clear the 12.5's? Is that reccomended?

All I can find for 16's as far as MT/R's go are metric tire sizes. What is the metric tire size equivalent of a 33x12.5?

Thank ya', folks!

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Old 05-17-2013, 11:13 AM   #2
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5" back spacing. I fat fingered it. 16x8.5 wheels with a 5" back spacing.

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Old 05-17-2013, 11:14 AM   #3
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I'm running 3.75 with my MTRs and they clear... I would say 4.5/4.25 at minimum.
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Old 05-17-2013, 11:16 AM   #4
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Is it excessive? And what size are your wheels?
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Old 05-17-2013, 11:22 AM   #5
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15. It's not excessive what I have. I have to stay mostly covered by the flares to be legal in PA. Most people I know are running what I mentioned above. 5 might just rub. The fronts would be bad I think. I can rub on my sway bar/control arms offroad now, with 3.75.
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Old 05-17-2013, 12:27 PM   #6
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Cool. Is there any real benefit from that extra inch in wheel diameter? Should I just save some scratch and get 15's and a smaller back spacing to avoid any rub? I'm gonna put wide flares on this puppy, so I'm not too concerned with the sticking out part.
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Old 05-17-2013, 01:19 PM   #7
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probably. smaller wheel = more sidewall which is better offroad. A wheel with correct backspacing would be a good idea.
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Old 05-17-2013, 01:58 PM   #8
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Then it's settled! The 15's are cheaper in both respects, too. The tires and wheels are both about $30 less per unit, and they won't cause rubbing and such! Neat! That ends up being a big chunk of change that I didn't have to spend there, so I can apply that to other toys! Thanks! You practically just bought my jeep a present with advice!
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Old 05-17-2013, 01:59 PM   #9
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glad I could help.
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Old 05-17-2013, 02:50 PM   #10
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Fortunately, here in WY we don't have to worry about fender coverage. I have 3.5" back spacing on my 15" x 8" wheels & no suspension rubbing issues even at full stuff, etc. I did have to trim the stock fenders 1" for max articulation. The only downside is that my jeep gets filthy if I even think about driving through a puddle.

That said, I think the 3.75" back spacing is more common, but 3.5" works well too, especially if you want as much articulation as possible without rubbing.
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Old 05-17-2013, 03:14 PM   #11
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I don't rub either. 3.75 backspacing is the perfect width on 33s, when running sahara flares


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