Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (http://www.jeepgarage.org/forums.php)
-   Wrangler-JK (http://www.jeepgarage.org/f89/)
-   -   Ideal tire size for 4.56 gears? (http://www.jeepgarage.org/f89/ideal-tire-size-for-4-56-gears-29136.html)

Kev- 09-29-2011 05:31 PM

Ideal tire size for 4.56 gears?
 
2006, stock non-Rubicon 42RLE tranny, stock non-Rubicon t-case, 4.56 gears, 33 x 12.5 x 15 BF Goodrich T/A KO tires.

With the 33s it bogs down often. Going up a hill in a 40mph zone consists of 2 options: constant shifting between bogging/slowing down and revving until exceeding the speed limit, or turning off O/D to stay in 3rd gear.

Since it's far easier to get a smaller tire than it is to change the gears again, I'll just step down in tire size if that makes a better daily driver setup.

Or, maybe the problem is the 42RLE and I can't do anything about it?

This Wrangler will "sometimes" go off road. Like, 2 or 3 times a year. Which is to say, it doesn't need 33s. 30s or 31s would be fine.

azyjjk 11-02-2011 01:37 PM

Re: Ideal tire size for 4.56 gears?
 
I have a 92 YJ Sahara (4.0 6) 5 speed manual trans. with the same tires and 4.56 gears and have had no problem like that. I could run 35's with the 4.56 gears and it would put me back around what it was with the original gears and the original tires.

starscream 11-03-2011 12:41 PM

Re: Ideal tire size for 4.56 gears?
 
Quote:

Originally Posted by Kev- (Post 491976)
2006, stock non-Rubicon 42RLE tranny, stock non-Rubicon t-case, 4.56 gears, 33 x 12.5 x 15 BF Goodrich T/A KO tires.

With the 33s it bogs down often. Going up a hill in a 40mph zone consists of 2 options: constant shifting between bogging/slowing down and revving until exceeding the speed limit, or turning off O/D to stay in 3rd gear.

Since it's far easier to get a smaller tire than it is to change the gears again, I'll just step down in tire size if that makes a better daily driver setup.

Or, maybe the problem is the 42RLE and I can't do anything about it?

This Wrangler will "sometimes" go off road. Like, 2 or 3 times a year. Which is to say, it doesn't need 33s. 30s or 31s would be fine.

Have the auto shift points been recalibrated for the new gear/tire sizes?


All times are GMT -5. The time now is 10:12 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community