What is ticking!

[bdebde]

Originally Posted by brushlessboy16

I think it was the pinon- the teeth on it were rounded. which leads me to beleive that it just wore out...

Did you rebuild the diff with new bearings? If the teeth in the diff were worn off, they would push past each other and wear out the bearings. When you put new gears in with those old bearings, they will slip past each other much easier.