Your output shaft should measure 5.5 inches away from the lip of the adapter I marked in red, which I believe is probably 1.5 to 2 inches in depth. So if you are going to try it, the output shaft with the tail cone removed should measure somewhere around 7 - 7.5 probably. Everything I have read about getting a 4wd tranny to work with this adapter says that you need to replace the output shaft of the tranny with a 2wd shaft, which means opening the tranny to replace it and is something I would not recommend myself. I would take that tranny to a junk yard and swap them for a 2wd version.

