For those sitting on the fence wanting to run bigger tires with 3.21 gearing.......
03-09-2013, 05:33 AM
#1
JK Newbie
Thread Starter
Join Date: Jul 2011
Location: Port Charlotte, FL
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
For those sitting on the fence wanting to run bigger tires with 3.21 gearing.......
The AEV Procal really does the trick. I have a 2013 JKU auto tranny with 3.21 gearing and I am running Toyo AT/IIs in 295/75/16. After the install, I noticed my Jeep running sluggish and the shift points were obviously off. I compensated for this by using the manual shift mode and it did quite well. I finally put out the money for the AEV Procal and I couldn't be happier. My rig is no longer sluggish and it shifts great again. Glad I didn't settle for the 33s.
04-02-2013, 05:51 PM
#2
JK Newbie
Thread Starter
Join Date: Jul 2011
Location: Port Charlotte, FL
Posts: 57
Likes: 0
Received 0 Likes
on
0 Posts
Meant to do a follow up post sooner. I was a little hasty when I posted my original thoughts. I noticed improved shifting around town but once on the interstate, I realized my JKU was struggling getting up to speed and accelerating. I finally remedied my situation by trading my JKU 3.21 equipped rear axle ratio for a 3.73 equipped JKU and couldn't be any happier. So for those wanting to run 34s or 35s with the 3.21 gearing, think long and hard as it made my JKU a slow moving mule on the interstate.