Originally Posted by
mellow
I think a lot of people don't go through the trouble of breaking them in, so they're pretty much toast after the first couple of runs. A proper built and broken in diff should last awhile.
I spend as much time breaking in my diff as I do rebuilding it. Done correclty and the diff should last a long time. I am just getting ready to rebuild mine after 3 to 4 months of racing. It is well due but still smooth enough to win races with.