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Old 07-12-2012, 06:12 PM   #31
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Quote:
Originally Posted by DJ_B1R

Thanks for the reply. So say I get the Adam's drive shaft, I should be good? I just don't want any problems in the future.
The front is fine--as Pluke said--adding lca's is nice but, positive caster will make the pinion worse. You will need adjustable rear uppers to set pinion angle w/ a double cardan DS or you might/will get vibes.

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Old 07-12-2012, 06:45 PM   #32
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Does procal programmer void warranty

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Old 07-12-2012, 06:50 PM   #33
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Originally Posted by bakerboys
does procal programmer void warranty
no
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Old 07-12-2012, 06:52 PM   #34
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The changes are minor so I doubt it. Most everything you do on a Procal the dealer also does. Plus you can always restore to factory default settings so they'd never know you used it anyway.
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Old 07-12-2012, 06:55 PM   #35
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factory 17"

hi, i got factory 17'' rims and 32 tires S package with 5 speed auto and
it runs fine, 3.21 if i wanted 15mpg's i would have ordered the 3.73 like i had
on my 07jk 2 door, but we all like something different that's one of the many
good thing about the wranglerwhen i trade in my 2012 it will not make
any difference at trade time, which will be 2014 with 8 speed auto only
have about 400 days to go! i love the wrangler forum..next jeep #7....
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Old 08-31-2012, 01:49 PM   #36
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The new 3" Mopar lift is installed and the KM2s are on- along with a Procal tire size programming change.(It makes a difference).
How does re-programming the tire size with a Procal help with power/acceleration? I thought it's just for making the speedometer/odometer accurate again.

I have 3.21 gears and just installed RR wheels and 33" DuraTracs, and immediately noticed loss of power/acceleration even though the tires are only 10lbs heavier.

The 33" DuraTracs are only 3/4 of an inch larger than the stock Bridgestone Duelers, so speedometer/odometer accuracy isn't a concern of mine.
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Old 08-31-2012, 03:00 PM   #37
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Good info, thanks!
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Old 08-31-2012, 09:58 PM   #38
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I have 2012 JK automatic and getting 4 Pintlers and the AEV full lift 2.5 kit. I hear all different opinions on the loss of power ranging from "substantial" to "minor". I am confused as all hell. I will likely go with Nitto Trail 295/70 17's.
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Old 09-08-2012, 09:51 PM   #39
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For those that have a manual- losing a gear might seem pretty substantial. I've read that on almost every thread consistently-losing 6th. I think the automatics are more subjective. A buddy just went with 35s on his hard top Unlimited- and says he barely noticed. Wit hthe e
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Old 10-14-2012, 08:11 PM   #40
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Does anyone run 305/70r17 with the 3.8 manual and 3.21? I am thinking about going up to these, on my next set of tire without re gearing.
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Old 10-14-2012, 10:45 PM   #41
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To answer the poster who asked how the Pro-Cal helps with driveability, you have to think GI-GO (garbage in - garbage out). If you don't give the computer accurate information, it can't set the shift points in the electronically controlled automatic transmission to the optimal position. It's less of an issue in a manual.

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Old 10-14-2012, 11:45 PM   #42
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Since this had been re-bumped- it's been a few months since the lift and tire install. I'll be re-gearing without doubt. Totally a matter of opinion- but the tendency to downshift at/to low RPMs is driving me crazy. I drive mostly city- and my Jeep is downshifting at 40 MPH- into 4th- at about 1400 RPMs. WAY too low- no engine or tranny should run there. I could deal with the change otherwise but this is 90% of my daily drive. I've attempted to correct with Procal but no luck. This may be limited to my Jeep- but I doubt any dealer will fix much less investigate. Just a matter of 4.56s or 4.10s and when I win the lottery. (Since I might as well add lockers while I am at it). And get rid of the 34s I put on to avoid a re-gear- and put 35s on.
* Adding a "this is only an opinion" disclaimer here. Plenty of Jeepers seem to be able to deal with the performance change.
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Old 10-15-2012, 08:55 AM   #43
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Originally Posted by onetraveller View Post
To answer the poster who asked how the Pro-Cal helps with driveability, you have to think GI-GO (garbage in - garbage out). If you don't give the computer accurate information, it can't set the shift points in the electronically controlled automatic transmission to the optimal position. It's less of an issue in a manual.

Mike
I agree with GI-GO but I asked AEV if the procal got into that part of the computer and they said no. So I am not sure how it can affect the shift points.
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Old 10-15-2012, 09:10 PM   #44
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DJBR1 what lift kit did you go with. That thing looks great. Mine is exact same minus the tires and lift but tires are coming soon.

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