I have a t style transfer case shifter and it is stuck in 2H. When I take the T handle off, it appears that there should be something to push the bar inside the shaft, but mine is missing. I bought a new button thinking that was the problem, but my button is ok. It is loose in the handle. The problem is not the button but couuld be something the button is designed to push. Does anybody have a solution or know where I can by the parts for the shaft.