2012 5-speed in older JK
Thread Starter
JK Newbie
Joined: Jul 2010
Posts: 15
Likes: 0
From: Bakersfield, CA
2012 5-speed in older JK
So looking at the new gear chart for the 2012 JK it looks like you would not need to regear it until you get some very large tires. That brings me to my question.
Would the 2012 5-speed auto bolt up to the 3.8 in a 2010 jk? To get a slightly used NAG1 Transmission is only about $1200. Which would be a little cheaper then regearing. But what would be the other parts you would need, or has anyone even considered this option.
Would the 2012 5-speed auto bolt up to the 3.8 in a 2010 jk? To get a slightly used NAG1 Transmission is only about $1200. Which would be a little cheaper then regearing. But what would be the other parts you would need, or has anyone even considered this option.
JK Enthusiast
Joined: Aug 2010
Posts: 488
Likes: 0
From: Ventura, CA
I'd imagine you'd have to have an adapter plate made up to mate them. More importantly though is getting the older ECM programmed so it will use all the gears in the new tranny (for an auto).
all these trannys are hooked into the computer nowadays!
all these trannys are hooked into the computer nowadays!
