I just put one on mine
You could do it with the tranny in place but you might be mad before you finish.
The skid plate will have to come off or you wont be able to reach all of the linkage.
Unless your arms are 4' long and have more joints than mine do.
Keep us posted I could not get park and low to work like I wanted.
I have it adjusted now but it does not want to come out of park because of the front connector arm angle.
Partly because of the shifter hitting my console in first gear and the dash in park