Food for thought Dala, I had same issue with my box, got quoted 800 to overhaul... Thought bugger that, pulled the box out myself stripped it and it was the input shaft bearing that let go... Cost me 20 bucks for new bearing got it pressed on at local mechanic for nothing And put it back together and was good as new... If your handy with tools give it it a go I say.... Either way your box needs to come out so won't hurt....