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Tire Fitment Chart |
29 x 9.5 |
30 x 9.5 |
31 x 10.5 |
32 x 11.5 |
33 x 12.5 |
34 |
35 x 12.5 |
36 x 15 |
38.5 x 15 |
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MB, CJ2-A/3A/3B |
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Stock |
L-1 |
L-2.5 |
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CJ5/6/7/8 |
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Stock |
L-2.5 |
L-3 |
L-3, B-3 |
L-4, B-3 |
F, L-5 |
F, L-4 B-3 |
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Wagoneer |
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Stock |
F |
F, L-4 |
M, D-4 |
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M, L-4, B-3 |
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Cherokee |
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Stock |
L-3 |
M, L-3 |
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Grand Cherokee |
Stock |
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L-3 |
M, L-3 |
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F, L-6 |
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Cherokee Chief/Pickup |
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Stock |
L-3 |
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L-4, B-3 |
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YJ |
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Stock |
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L-2.5 |
L-3 |
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F, L-4 |
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F, L-6 |
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TJ |
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Stock, W |
L-3 |
L-3 |
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F, L-3 |
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Stock = no lift required |
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F = Fender trimming |
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M = Major Fender trimming |
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L = Lift (inches) |
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B = Body lift (inches) |
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W = wheel offset crucial |
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These are guidelines only. Each tire size varies from manufacturer to manufacturer and each vehicle is of different height based on component wear, etc.
Note also that the chart does not take into account SOA conversions that provide between 4 to 6 inches of lift dependent on the size of the axle.
When deciding how big a spare for your carrier weight is the main issue. One workaround is to get a tire of the same diameter but reduced width.
It is recommended to stay within three inches in diameter of the tires to be replaced. If you have a locker get the same diameter spare.
BFGoodrich TA & MT tires are the most popular in the group although other brands are much better for mud.
OK4WD covers this topic nicely.
mph x gear ratio x 336 = rpm
tire diameter
Again see the OK4WD site.
Tire pressure noted on the sides of your tires are typically for maximum loads.
The only good way to determine proper street tire pressure is to follow this
following parking lot procedure:
- Air your tires up to the maximum per the sidewall.
- Draw a line across the tread using chalk or a crayon.
- Drive forward for a short distance. Do not turn.
- See which part of your line is worn away.
If the line is worn in the center of the tread but not the edges then you have too much air in your tires. Let a few pounds of air out and repeat the procedure until the mark is worn off evenly across the tread.
You now know the ideal setting for that tire and load. One important caveat is that your wheels must be of sufficient width to allow your tires to flatten properly.