What kind of difference did using the AEV Procal make?
JK Newbie
Joined: Aug 2012
Posts: 95
Likes: 0
From: Killen, Alabama
I live a couple of miles from AEV and Dave Harrington's brother invented the procal and he told me that it does in fact adjust the shift points to where they are supposed to be. If you are saying that you can not adjust them to where you want them you are correct but the Procal does adjust the shift points back to where they are supposed to be when adding larger tires.
Thread Starter
JK Enthusiast
Joined: Apr 2013
Posts: 122
Likes: 0
From: Anaheim, ca
My main issue was, why I was only getting 16 mpg on the hwy when the 3.21 gear was suppose to be so much better for milage. Then I realized my odometer was off, making the computer and my manual calculations off. Now I'm showing about 19mpg on the hwy. I am loving the smoother shifting.
Having OCD and a Wrangler is a dangerous combination.
Having OCD and a Wrangler is a dangerous combination.
JK Enthusiast
Joined: Jul 2009
Posts: 118
Likes: 0
From: Peoria, IL
True. What it does do is correct the false shift points caused by the RPM's changing due to the incorrect tire sizes. The transmission shift points are based off of the RPM's and of course the incorrect tire size will give a false RPM indication.