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I think it depends on the year. 2012+ need to be programmed.

thank you sir but it has been solved.

this was very helpful. Thank you so much. 41/11=3.73. i reprogrammed it and it runs normal now. Thank you so much.

I am sure he's right but after more research 41/11=3.73 I am curious if by the worst luck all 3 ring gears have been 3.73 and everyone including me assumed they are 4.10's I think he may have cracked the issue but i wont be able to confirm for a few more hours.

What are the odds i am the worlds biggest dummy and am reading 4.1 1 as in 4.1:1 as 4.11:1. Either way i did program 4.10 and still the jeep would go into limp mode. But I can try that again after reseting to stock. clearing ECU i will then flash the computer to 4.1

Im gonna have to take your word for it but I have seen three separate ring rears from what i was told stock jeep rubicons with 4.11 stamped on the ring gear. It is possible i am looking at the wrong spot or that these are after market. But i did have to order a new front locker from Fb market...

The flash cal was updated just before i used it. It doesn't have the option for 4.11 but I got a jscan and that had the option for 4.11.

I got Dana 44 front and rear from a wrecked 2015-2016 rubicon. it had 4.11 on the ring gear. The front and rear both have 4.11 on the ring (I confirmed by pulling diff cover). The front axle tube was bent bad so i had shop but the locker in a j8 housing.

one of sensors is new one is form the stock axles. I am not sure what you man by set the tone rings. The tone rings were on the axle when i bought them. here is the link to the axle shafts i bought. https://www.amazon.com/gp/product/B00EYTRI6M/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1...

I will order that today. with the wheel speed sensor un plugged it still shifts very hard into third but wont go into limp mode. I am hoping i am giving enough information. I am very ok at the mechanic side of things but i am not good at all with computers.

@Bear_JT I have pulled the pan and changed the fluid at 60k currently sitting at 87k. @JKbrick the rear tone rings at 52 teeth i got mopar brand from amazon i can post a link if needed but they are the stock replacements. @MericaMade i bought it new from amazon @wjtstudios I only go into limp...

i swapped a front and rear rubicon axle (2015-2016) in to my 2012 JKU. i made the rookie mistake of putting the jeep in gear before i flashed the computer with my flashcal. now the jeep is stuck in limp mode. took it to the dealer ship and they said they cant change the gear ratio. but i had...