PS - there is a pin that goes through the shifter housing under the cup you unscrew. This pin is what keeps the shifter from spinning (there is a groove in the shifter it slides into)
Make sure not to drop the pin into the trans when removing the shifter. Once you carefully remove the shifter get the pin as well so there is no chance of it going antywhere.
Building a Jeep is like playing golf, every now and then you get a good shot that makes you believe, hey I can do this!