Went from a easy 2ed to 3rd shift and all of a sudden, bang, bang, bang, bang......etc, just like that, no warning, nothing. Went by my mechanic and he verified what I was thinking, broken tooth in 3rd. Bummer, only 125,000 on it. I thought the NV2500 was better than that, I am surprised. Time for a core exchange.

 

I just blew 3rd out of mine . . .
But mine was under boost from a stop. It let go at about 60 lbs when pulling the engine down from 4k rpm.






I bought all the replacement parts for around $300 . . . I went on the cheap, because I plan to change to an auto from Dave Goerend eventually . . .

Good luck,
Phill

 

At least you can say that you were doing SOMETHING!!. Mine was sort of like throwing out your back by picking up your dirty socks.

 

we broke the end off the main shaft in my old NV4500 with something like 60,000 miles on it pulling about 8000 #'s. went from 2nd to 3rd when BANG and it threw itself outta gear.