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Got back to the working on the truck today, temp finally below 100+. I pulled off the front driveshaft and it was under tension. Now I can push and pull the sprag shaft in and out. When it is pulled to the forward position is it engaging the front or rear? Also what port on the poppet valve...

I rebuilt the case and when the transfercase was out I tested it with shop air and you could hear a thunk when it went forward and reverse. In the truck you can hear air dump out of the valve when you shift from forward to reverse and vice versa, but no thunk of engagement of the sprag. I...

I have been having issues with my M818 sprag. I hear an air sound when putting the transmission into 1st or Reverse. However, when I try to climb a dirt pile the front is not engaged. I was able to test the air cylinder with the shops air and it does shift. Any ideas or things to try. I...