Alright well i searched through the board and didn't find anything really covering this problem, so maybe you guys can help me out. I just got the
![Marlin Crawler Turtle Logo :turtle:](https://board.marlincrawler.com/Smileys/marlin/turtle.gif)
lift, tom woods shafts, gears, bla bla bla all the usual stuff. Went out for the first trip the other night and everything went great nice and smooth and we wheeled the piss out of this thing. Well yesterday we went out again and everything went smoothly until the end of the night. I started getting this slight vibration comming from the front that would come and go. I was thinking maybe it is the offset u-joint that came with the high angle D-Lines that Tom Woods made for me. He said that at higher speeds that u-joint would vibrate pretty... but i was in 4-low 1st gear with just the factory transfer case (dont have duels). It progressively got worse through the night. Now I've pinpointed it to the transfer case because when out of 4 wheel drive the vibration stops...put it back into 4hi or 4low and it's back. It's not the d shaft because when in 2wd with the hubs locked there is no vibration even at 40 mph stick it back into 4wd and it's back. When I'm coasting in 4wd (clutch disengaged) at around 25 mph and i let the clutch out slowly i can hear a slight grinding noise and can feel it through the stick. Now could this be a bearing issue? Or a gear issue?
![Huh??? ???](https://board.marlincrawler.com/Smileys/marlin/huh.gif)
It is the original T-case from 84 and has 234,000 miles on the truck but the t-case has no where near that nor has it had a rough life. Any info is greatly appreciated.