Mikead40
New member
So I know there's another thread out there with the same issue - but I tried the fix the worked for that guy, and I'm still having an issue.
At 13k miles my 2013 JKU rubicon rear diff has stopped unlocking. I've taken the diff cover offer, manually unlocked it, cleaned it out very thoroughly and refilled it with RP 75w-90. Everything looked normal inside - (however I haven't exactly seen a lot of diffs.) I then re-engaged the locker and now it still won't unlock. I know I can manually unlock it through the diff fill port, and I know I can try reverse figure 8s etc etc etc - what I'm wondering is if anyone else has had this issue and what the problem ended up being. Or - if anyone knows something else I can try to do at home to solve the problem. I really really really don't want to have to bring it to the dealership, but if I do, I'd at least like to have a good idea what it is that's likely causing the problem.
At 13k miles my 2013 JKU rubicon rear diff has stopped unlocking. I've taken the diff cover offer, manually unlocked it, cleaned it out very thoroughly and refilled it with RP 75w-90. Everything looked normal inside - (however I haven't exactly seen a lot of diffs.) I then re-engaged the locker and now it still won't unlock. I know I can manually unlock it through the diff fill port, and I know I can try reverse figure 8s etc etc etc - what I'm wondering is if anyone else has had this issue and what the problem ended up being. Or - if anyone knows something else I can try to do at home to solve the problem. I really really really don't want to have to bring it to the dealership, but if I do, I'd at least like to have a good idea what it is that's likely causing the problem.