I was replacing the tranny when the vacuum hose that goes to the transfer case fell off. Since I didn't notice it I have no clue where the other end goes, the engine side. Im thinkin its important since thats the only thing not finished and when i put the truck in reverse it dies immediately. I believe its a 1998ish.

 

This will help you figuring out the vacuum for the tcase/ 4wd operation, which unfortunately for you , has absolutely nothing to do with the operation of the transmission.http://www.dodgeram.org/tech/repair/..._engagment.htm