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    Looking into upgrading gears. Average costs?

    I have a 2012 JKU with a 2 1/2 lift, running 35x12.5x20 inch tires, with AUTO tranny. Currently believe I’m running on the stock 3.73 gears. Would like to install either 4.56 or 4.88 as most driving is Hwy. Looking to see if anyone has a best cost on the gears, and what’s typical for install...
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    Strange issue - ETC,TracCntrl,Ck Eng lights on. Jeep runs fine..almost!

    Hey, I’ll take any thoughts or advice I can get. I did check on the gearing. From best I can tell with the charts available, as this is the 3.6 Pentastar 5-speed Auto w/ OD, it leans towards 4.10 gears, but I seriously doubt the dealer went from stock 3.73 to that. So, it probably has just the...
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    Strange issue - ETC,TracCntrl,Ck Eng lights on. Jeep runs fine..almost!

    The tires are 35x12.5x20 Maxxis Bighorn Mud tires. I thought I mentioned that in the original comment. Also, HUGE shout out to Maxxis for these tires going 84,000 miles and still going. NEVER heard of a mud tire getting that much mileage out of ‘em. As far as the gears, I’m not sure. I bought...
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    Strange issue - ETC,TracCntrl,Ck Eng lights on. Jeep runs fine..almost!

    Yes, speedo, etc corrected. I saw the “results” of P300. However, if it were actually misfiring, it wouldn’t run as smooth as it does. You’d feel it of course. Oil was just changed after problem presented, so that’s not it. I tried computer reset with no luck Got a call into local shop...
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    Strange issue - ETC,TracCntrl,Ck Eng lights on. Jeep runs fine..almost!

    So here’s the deal, as short as I can. One day, Jeep runs perfect. Next morning, start it up and my dash looks like Christmas. ETC, Traction Control, Check Engine and TPMS lights, all on. TPMS, easy fix. FYI - this is 2012 Jeep Wrangler JKU AUTO, w/ 84,000 miles, 2 1/2 lift, on 35x12.5x20 Maxxis...
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