A regear will do that.so i was looking to regear to obtain decent highway behaviour
You'll also want to get an AEV ProCal to "tell" the jeep about your new gears. That will adjust the shift points.also will regearing affect the shift points and addressthe poor eco mod downshifting
Sort of. But you'll regear in such a way (by, for example, getting 5.13s) that you'd never be able to "duplicate" by merely turning off the OD.also does regearing have a similar effect as driving with o/d off ?
Nothing but odometer tampering really "voids" any part of your warranty, the issue is whether your warranty would "cover" a given transmission or other problem that arises after the regearing.thanks for all the info !!! i might regear my auto to 5.13 . .. last question .... will regearing void the tranny warranty ?
The numbers show the RPMs at (I believe) 65 mph. That would of course be in 2wd on the highway or other high speed roadway.Am I correct that the charts above only apply to 2WD or 4WD-HI? For example I'm in the yellow with a 2012 JKUR with 35s and 3.73 gears. The chart's "mild trail use at low elevation" suggestion wouldn't apply when I throw my Rubi into 4WD-LO---dropping my gearing by a factor of four, right?
Right (except the RPM numbers are for 70MPH, but you got the right idea). All makes sense. I just don't want to spend $2K or whatever unless I absolutely need to do so. My logic may be off, but the characterization of the yellow for my situation---"mild trail use at low elevation"--seems to be an overstatement or oversimplification.The numbers show the RPMs at (I believe) 65 mph. That would of course be in 2wd on the highway or other high speed roadway.
The color coding provides guidance to help you choose gear ratios based on your use of the Jeep--i.e., under performing gearing, moderate gearing, and high performance gearing.
However, the truth of the matter is that for the 3.8 engine (which would obviously have different numbers in the RPM calculations) you would always want to regear yourself into the high performance area. The 3.6 has a more power and more room for error, so I could see rationalizing deliberately gearing yourself into the moderate area.
That said, if I was going to bother regearing either the 3.8 or the 3.6, I'd put it in the high performance zone.
Chart might be for 65 mph . . . I don't have a 2012, so I can't be sure. Your speedo could also be off. And of course make sure you're looking at the right trans.c0d3x5 said:Also, is the chart based of an avg? because my stock tires, 29" im running approximately 2700 rpms at 70 mph.. which puts me in the 4.10 gear range, but i have a 3.73 gear
That's curious. Do you have auto or manual?Also, is the chart based of an avg? because my stock tires, 29" im running approximately 2700 rpms at 70 mph.. which puts me in the 4.10 gear range, but i have a 3.73 gear