after diving my 09 JKU 3.8 v6 6speed for 16 years, I see no reason to upgrade to JLU/JT I have it set up the way I want it and that is good enough for me. when it comes time to replace the 3.8, I'll replace it with an LS3 6.0 V8 6 speed auto. My wife's 19 JL sport has been problem free in 6...