i am in the same boat. i currently am running 5.13s and 35s, but am considering swapping to 5.38s when i go for 37s

 

5:38's, no question,,,you need them to counteract the weight of the tires n wheels

 

How would 5.38 and MTR Kevlar 35" be with an auto?

 

open the drivetrain faq's and plug some numbers in. Or go back to post 22 earlier in this thread.

 

So look through the other 1000 threads asking the same thing.


Everyones numbers will vary, because everyone will have different 'actual' tire heights, and you will have people use mfg specs instead of going outside and measuring, and you will have people that haven't re-programmed for the new tires, etc.

Assuming that you use the actual measured tire height, that chart is very close to actual rpm's. Again, MEASURED heights, not mfg's. For me, it was correct for 3 different tire heights (stock sahara 18's, 33" nitto, 35" Maxxis) and 3 different gear ratios (3.73, 5.13, 5.38).

So, what exactly is your issue with an easy to use, easy to understand chart that was built specifically for JK's?

 

do they make 5.38's for d30s?

 

Touchy touchy. His information is good even if you don't like it, or the way he put it.

 

Interesting, just shot them an email.

 

In only 6 pages I had to read the same questions asked over and over. Come on folks, pretty please, lets reduce the noise and try reading the entire thread before hitting the reply button.

 

Guys,

So if a 35" tyres is really a 34" once mounted on the rim and on the car.... should we then be looking at athe 34" tyre size on the chart?????