This weekend my transfer case on my '93 started making noise. #@$%! It will not shift from 2 hi to 4 hi while the truck is in motion. :{ when stopped it will go into 4 hi and 4 lo. The noise seems like it is getting louder every time I drive it. I checked all fluid levels, greased all u-joints, every thing looked good. I need to get this solved because I am supposed to go hunting this weekend.
By the way, what is the bolt that is to the rear of the PTO cover on the driver side? What does it do? I removed it because I thought it was the transmission fill hole!!!
Thanks everybody!

