Engine/Transmission (1998.5 - 2002) NV4500 input shaft?

[bnbrown]

I thought and hoped my clutch had failed but upon pulling the trans out the input shaft flops around, I have no experience with trouble shooting these things. Anyone have experience if it is possible the input shaft failed and I could get lucky enough to be able to simply replace the input shaft? How would I trouble shoot the unit? Input shaft is loose like the bearings are plain gone, spins free aside from trashed bearing noise.
When in the truck it simply was like the clutch was gone, not even a hint of moving the truck when the clutch was let out.
Thanks

 

[SAndreasen]

You probly snapped the input shaft from the gear seen that one several times pull the top of the Trans and see what it looks like inside most likely it has ruined the countershaft as well / best thing to do now is get a new input shaft countershaft and bearings and synchro kit . Or a reman Trans but I haven't really seen one of them yet that I'm impressed with / I have pics of a snapped input gear / shaft in my photo album but that place is a hole lot different than it use to be I don't see a way to search it

 

[Bob4x4]

to prevent a repeat failure http://puredieselpower.com/dodge-pr...rdened-heat-treated-chromoly-input-shaft.html

 

[bnbrown]

I pulled the input shaft, or some of it. It sheared at the first bearing. Looks like everything else is operable.
I think I will just put a new input on it and toss it back together.
Will flush the trans out in case there is any debris that made it in, any suggestions on what to use to flush it out?

 

[SAndreasen]

I use diesel to flush em with then a quart of gear oil

 

[SAndreasen]

Have you pulled the four bolts that hold the input shaft in the transmission and pulled the gear out yet

 

[bnbrown]

I did, and took the top cover off, looks like the real culprit was the counter gear, lost about 4 chunks of tooth, probably causing a shock load on the input when a piece wedged.
Maybe I will just look at a reman, it was rebuilt about 150k ago but parts alone are going to be approaching half the cost of a reman as is, let alone what else I discover in there.
Have to do the clutch and flywheel too, flywheel has a bunch of heat marks and a couple little cracks visible.

 

[SAndreasen]

The remans I've seen so far are complete Might as well just build it yourself the so called remans are just built with junk parts and who knows how long they will last . Go down and take a look at my nv4500 thread on this page the only one I have seen that lasted at all was the bluementhal Trans