Guys,
I just had a thought come to mind on this problem, I may be way off but time will tell. I had been noticing a slight oil leak coming from the reverse idler shaft pin hole on the case right after I got the truck back on the road a couple of weeks ago.
When we got home Saturday evening from the car show, I raised the front end up and got under the truck and oil literally ran out of that hole. I am thinking that the shaft pin has broke or moved and has allowed the reverse idler gear to move out of it's position in the case and that is why I am getting grinding when I put it in reverse, and noise when the truck is idling out of gear.
Once I pull the transmission, I am going to take it to the only guy around here who still rebuilds manual transmissions and have him take a look at it.
Kevin
