Ok guys, I know these are obsolete, but there must be some parts out there somewhere. The dogs for the syncos are in the bottom of the case...this is not optimal I'm fairly certain. Need syncros. Also could use the 1st/reverse slider gear and cluster. The leading edge of those gears are dinged up. They may still be ok.

 

The sychros are available since they are the same as T10. Cluster gear and slider are a lot harder to find. I've got two complete disassembled T85Ns at my folks place with enough good parts to make at least one transmission. I had heck finding the parts though.

 

So I can just get a set of syncros from a t10 and they will fit?

 

Yes. One source, there are others: Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists