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-   -   2016 jku Rubicon 5 speed auto running 35s on 4.10 diffs (https://www.ausjeepoffroad.com/forum/showthread.php?t=141764)

black magic 20-11-2015 04:18 PM

2016 jku Rubicon 5 speed auto running 35s on 4.10 diffs
 

Hey, have you guys had any good or bad experiences with the 3.6 pentastar rubicons running 4.10 diffs and 35s? Mine will be an auto when it finally gets on the boat and makes its way into my driveway!

Fruju 20-11-2015 04:33 PM

You will be fine, just make sure to recalibrate for the 35s.
About the only thing you will notice is that crawling will be a little faster than manual Rubis with the same tyre size, but that was always the case anyway.

black magic 20-11-2015 05:28 PM

Quote:

Originally Posted by Fruju (Post 1558193)
You will be fine, just make sure to recalibrate for the 35s.
About the only thing you will notice is that crawling will be a little faster than manual Rubis with the same tyre size, but that was always the case anyway.

i currently own a manual Rubicon on 32s how much of a difference am i looking at? on 32s with the manual it nearly stops going down a hill

SeaComms 20-11-2015 06:10 PM

Mate of mine has the 3.8 manual on 35s and if anything its better in low range for most work as its a lot more useable! No probs on the highway either, but you will need Procal or similar to reset the speedo and auto tranny shift points for the best result.

black magic 20-11-2015 06:43 PM

Quote:

Originally Posted by SeaComms (Post 1558201)
Mate of mine has the 3.8 manual on 35s and if anything its better in low range for most work as its a lot more useable! No probs on the highway either, but you will need Procal or similar to reset the speedo and auto tranny shift points for the best result.

good to know... and yeah the 73.1 crawl ratio is pretty extreme unless rock crawling and yeah im planing on getting one from double black when my roof rack comes in later next week, the flashcal or the flashpaq should do everything i would need yeah?

Fruju 20-11-2015 06:43 PM

Quote:

Originally Posted by black magic (Post 1558198)
i currently own a manual Rubicon on 32s how much of a difference am i looking at? on 32s with the manual it nearly stops going down a hill

Clubmate with auto 3.6 on 35s has to keep braking so as not to run into the back of me. I'm on 34s. If I was on 35s too I would still be going slower than him. One thing the auto does have though is Hill Desent Control but that uses the brakes.

black magic 20-11-2015 06:45 PM

Quote:

Originally Posted by SeaComms (Post 1558201)
Mate of mine has the 3.8 manual on 35s and if anything its better in low range for most work as its a lot more useable! No probs on the highway either, but you will need Procal or similar to reset the speedo and auto tranny shift points for the best result.


does your mate run the stock diff ratios ?


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