holy crap. I forgot you had a toy.
I am not very familiar with the MC lift, but usually a CV helps but is not necessary. It will reduce/eliminate vibes on road though.
You will need to shorten the rear 6.5/extend the front 6.5...but I've always said it's better to do the shafts after the cases are in the truck. If you can run a cutoff wheel and a welder you can build your own shafts. I use 4 casters 2 on one end, and 2 on the other(tacked to a plate and clamped in place) to center/spin the shaft. tack it in place with the yokes in phase and then use a hammer and a dial indicator to get runout as close to zero as possible.
for measuring, measure the flange distance with the truck sitting on flat ground, and set the slip up about center(depending on your suspension of course) then measure the length from flange to flange and see how much tube you will need.
