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  1. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Never towed

  2. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Well, update: had gears changed by different shop and gear installer said gears were probably not set up right and only one tooth contacting. Gears feel so much better and tighter, no play. Gear installer has 25 years experience and has done many JLs. I have not hit the first 500 miles to...

  3. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    So it looks like both times my gears were done the shop never really explained the break in procedure to me and I drove home for 50 minutes on the highway, no cool down going 120 kms an hour. I didn’t know…. Now paying the hard way…. I have learned a lot reading the forum about the break in...

  4. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    no gear pattern pic each time given to me. Great idea! Six month the first time and six months for the second time. I drove easy the first 500kms the first time and even easier the second time. I did drive on highway for 50 minutes to get home but took it slow speed limit. I do accelerate...

  5. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Only pics I have from last time, shop did the work, checking out diff tomorrow hopefully, just had open heart surgery so I shouldn’t but curious and need to see lol

  6. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    no not sarcastic, don’t really do forums too much, five kids, work, so busy… good advice thanks!

  7. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Teeth

  8. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Pinion rear only again

  9. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Now that was helpful! I did not know this and now I have learned that the 5.38 pinion is smaller. May be why…

  10. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    I’m trying to find out why it is failing, someone more experienced than your smart ass comments. You said it seems like overkill and I provided the info I used to pick my gear set, which was acceptable. Just showing you, no need for the comments if you’re not going to be helpful. Thanks anyways.

  11. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Totally acceptable range…

  12. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Well the 4x4 Jeep shop installed the gears the first time and then under warranty they corrected it and paid for all. Now I have not contacted them yet to see if they are going to do anything but if they do I guess go to 4.88’s and I’m different brand your recommending? I was going to go 40’s...

  13. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Yukon both times

  14. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    I w i was using the normal kind for my diff but royal purple SAE 75w-140.

  15. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Yes same noise as last time, even in neutral, grinding. Taking diff cover off in the morning. 100% that is what it is. I had major teeth broken on the pinion the first time, ring gear not broken, just scrapes from broken teeth. I have not drove this time as bad, but I know it’s the same issue...

  16. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    I’ve never done a burnout, lol. Rubber too expensive, more like heavier on the take off…. I keep reading how small and weak the 5.38 gear is. Now I’m thinking I should go to 4.88’s this time. How hard are gears to do yourself with no back up? Should I attempt it? I would love to learn and...

  17. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    I am a little heavy on the peddle but I thought I had a robust axle (Dana 44). I barely do any offroading yet. Jeep down!!! Sick to my stomach lol

  18. 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear

    Hi, 5.38 gears installed with 38’s on 2020 JLUR and this is the second time they blew in the rear??? Gears professionally installed by shop and proper break in done, anyone know why??? This is frustrating and expensive! I have seen some posts online about the 5.38 pinion is the smallest and...

  19. Royal purple with additive

    Thanks for your support I’m going nuts I have the electronic locker also so everything will be fine?

  20. Royal purple with additive

    Thanks but the royal purple has additive in it??? Ok to use?


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