Outer Limits 4x4 Board

i have looked at 6inch lifts for my Sahara and just need to find out the gearbox spacers for the lift will that fix the front tail shaft vibration or do i still need to run a double cardinal front drive shaft. i have full time 4wd and don't really wont to go to a part time setup.

all help would be muchly appreciated thankss

As we all said in your other thread on exactly the same question, go a 3 inch lift and you wont need the double cardin and can keep your full time 4wd.
The 80 series have one of the biggest wheel arches enabling you to run big tyres with minimal lift.