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So I’m going to update my ecu on my 2010 jk, 3.8, auto to account for my new 4.56 gears. Consensus is to program the ecu for the gear ratio change. I have both the Superchips flashpaq and the JScan app with OBDII adapter. Both are supposedly capable of doing this - any recommendations on which...

So I regeared my 2010 jk 3.8 auto with 3.73s to 4.56s today-Was told I did not need to program the pcm by the shop to account for the new 4.56 ratio gears- I’m still getting some saying it needs done and some saying if it’s a model prior to 2012 there is no need to do so. I just don’t want to...

Hi guys and gals: My 99 TJ frame is shot and have a frame from a 03 waiting. My question is, my 99 has the 4.0 and auto. The 03 is also a 4.0 but manual. Will my 99 body an auto transmission fit on the 03 frame? Thanks in advance for your quick replies!!

Anybody running this lift? If so pics please.