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Old 05-13-2014, 12:36 AM
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cmaggi2's Avatar
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33 vs 35 tires on 2012 JK Rubi

I know I need to add C's at a minimum, but probably sleeves or a truss too...but why do I "need" to add armor for the axle on 35s? Is it a weight or tire size issue? I think 35s on a 2-door look awesome, but have always heard 35s are a significantly more expensive route. Hypothetically, if I had light 35s that weighed the same as 33s, could I get away with decently difficult wheeling w/o strengthening the d44? In a nutshell, why is a 35" tire the magic number for beefing up the axle?

2012 Rubi 4:10 Auto


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Old 05-13-2014, 02:35 AM   #2
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There is no magic number and if you beef up your axle something else will fail if you over stress it.

There are hundreds of Rubis, Sports and Saharas off road with out damage. It just depends where you go and how careful or carefree you drive.

The bigger the tire the more leverage, bending and torsional stress it can cause on the axle. 35" tires are able to create higher loading in more common situations but straightening the axle is not always a requirement. 35" tires are mentioned just a very popular tire size because it is like the "natural" fit on the JK chassis.

Always pick your weakest link and make it something reasonably priced. Consider it to be safety fuse.

"Don't take life too seriously. You'll never get out alive."
B. B.
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Old 05-13-2014, 11:02 AM   #3
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Your fine. At a minimum, you don't need anything. You don't need new C's, unless you mean C-gussets. That is recommended. I ran and wheeled 35's on my D30 with just c-gussets.

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