right. The trutrac is the limited slip, I was thinking it was the locking diff since he asked what locker he should buy. The Detroit lockers will definitely clunk into lock when on ice. Usually while turning. I've ridden in one that did it. It was almost undrivable.

 

I drive 130 miles a day for work, i went with 4.56's in my auto 2013 JKU, and i'll do it again if i had to, a lot more practical for a DD compared to 4.10's the way i saw it., running 315/70/17 KO2's, and have no intentions of going bigger, i also wheel my Jeep a little more than lightly, zero issues knocking on wood so far other than a bent tie-rod, but that's because the factory tie-rod is weak sauce
I'm getting an Eaton elocker rear and Detroit trutrac front, tomorrow, thought and thought about it, and decided to get more traction than stock in the front without going with a locker, my Jeep has survived a full year of doing the fun trails without lockers, i can only think that with a rear locker and a front TT, i'll need actually less gas pedal efforts to make the same obstacles, hopefully... lol.

 

30/44 combo here on a 2014. Regeared this summer to 4.56's. Running e-lockers front and rear. I wheel every chance I can, no issues. On the highway I actually lost 1.5 mpg going from the 3.21's to the 4.56's. I have around $3200 with parts and install.