Ive dealt with this headache before...except mine went one step further. Took a short local trip on a simple trail (can be done in 2WD)...and had the most problems I have ever had on the trail (go figure). As I was pulling back into town, a guy with me said "hey I think you are leaking something, because we got splattered with something when you went around that corner." I did a quick inspection, but didnt see anything. Made my way home, went inside for a bit, then came back out to a giant puddle of gear oil in the driveway. One of my ring gear bolts backed all the way out, and had actually punched a hole in my diff cover. Thankfully, I hadn't installed an aftermarket cover yet, or else I probably wouldnt have found out til it was too late. I pulled the carrier, and out of like 10 bolts, 5 of them had come out half way and the other 5 were hand tight. I took the carrier down to my buddy's shop where the work was done and they said they had never seen anything like that happen before. They have done all of their gear work with the same guy for like 10 years and never had an issue like this (including race rigs and buggies). In those 10 years, they have only had two incidents...one being mine...of course haha. Anyways, the ring gear bolts appeared to have a little loctite left on them...so to this day, we arent sure what happened. But it is fixed...and havent had an issue since.