They are a slip fit the case must be twisted. A spilt case would be a better way to go, you will need the adapter plate that will allow it to bolt up to the 4 speed.
That worked well you were able to control it from swinging.
Looks like the output shaft has wear on the splines where the input gear rides. Check the splines on the gear and see is they are worn also. Both may need to be replaced and are available. Had to do it when I did the rebuild of...
Sounds like the transmission needs to be rebuilt and is easier to remove them together. For one, when you pull the transfer case it is heavy on the output side and will rotate to 6:00, two they share the output shaft of the transmission. There is a thrust washer on the back end of the...
Years ago when I was working in the Portland, OR area, we found a shop in St Johns that was the first time I had seen a broken Birfield outer section and the owner of the Land Cruiser had a Chevy 400 under the hood and he claimed it was making 400 HP. He broke the Birfield on the counter and...