I was driving to lunch on Thursday and was being lazy and shifted from 3rd to 5th. I shifted into 5th, spooled the turbo a little bit before I let the clutch fully engage. As soon as the clutch locked up it popped. I thought it just popped out of gear but when I put it back in 5th and released the clutch it just coasted. I try 4th gear and it worked fine and so did the rest of the trans, so I automatically think "5th gear nut". I took out the trans tonight to take a look. After pulling the transfer case off to expose the fifth gear, I notice that the nut is still in place and looks perfect. I next look at the end of the other shaft only to find that it indeed is the piece that broke. About 1. 5 inches from end, it just sheared in two. So what are my options at this point? I believe it is the main shaft(correct me if im wrong), so what kind of cost am I looking at to repair it?