Ok,
Remove the boot from the body,now see the small round black boot around the shifter,it has a metal lock ring on it,some say it can be reused but I just cut mine off and used 2 zipties to replace it.Now there's a round metal piece in side the transfer around the shifter.Push down and turn counter clockwise...It's kinda hard to do but then the shifter will lift right out.Just make sure you get it back in right...test it before you put the boots back on.I extended mine at the bottom so the shifter still had all the same angles etc.
Later Tom K.