renegade4x4

Call Yukon Gear. Ask them. They made this part specificly to fit our jeeps with the 1/2" ring gear bolts. Don't give up right here. I had truetracs installed front and rear of my 12 with no problem other than drilling out the case.

To the OP did you have to have the locker drilled to match your 1/2" ring gear bolts?

Rule18

Really? I had one done a few months ago and watched the whole thing in the shop. Why do you believe it can't be done?

Dynatrac

I've done some checking and confirmed that this locker issue is only with auto trans equipped 2012-2013 JKs.

renegade4x4

Is it with all soft lockers? Man I am glad I installed the trutrac in the front and rear. I almost went with the Yukon one.

renegade4x4

There's no adjustments to make on the rear. Unless you have aftermarket adjustable control arms.

Dynatrac

I would assume this would be true with any of the available autolocker. The Truetrac isn't a locker so this would not be effected.

BigSteve

Just out of curiousity what exactly is the issue? Is the unexpected locking and locking of the new differential confusing the abs and therefore putting it into limp mode?

JKbender

Dynatrac... Would this be an issue with an ARB as well? If not, why not?

Northridge4x4

This is all very interesting stuff for sure!

Dynatrac

I did some checking and found that the new 12 auto trans computer is a bit more complex than previous models. While driving it monitors yaw, pitch, acceleration, vehicle speed, wheel speed etc. A Detroit Locker is always locked until traction on a corner allows the outside tire to unlock. When equal axle speed is achieved after the corner, the unit once again locks. It is suspected that the lock/unlock motion of the locker is tripping the computer. The ProCal is not able to compensate.