Branson 4020 rear axle failure?

[LouNY]

Ouch, that's a lot of teardown to get to the ring gear bolts. Back in my racing days we used to see that once in a great while.
I'm surprised that they weren't lock tighted.
Good luck when she's back together.

 

[LindenBruce]

Ouch. I wonder if the bolts were not hardened when they were produced or the wrong bolts were installed. Stuff like this can happen. The company I work for, we have had two leaf springs fail on two different machine in the last few weeks, and these machines only had a few hours on them. So it looks like we got a batch of bad springs from our supplier. AND, we have had 5 A/C systems fail on brand new machines in the last few weeks as well. Bad thermostats. Not good. But stuff happens. B.