Originally Posted by Smyln
you lifted the vehicle. How did you move the axle back if the vehicle went up?
If the drive shaft stays the same wound't the rear axle move forward if the rest of the vehicle went up?
If a lift hasn't been engineered to account for axle movement, it will cause the front axle to move backward and the rear axle to move forward as the Jeep gets higher. The higher the lift, the shorter your wheelbase gets and the rougher the onroad ride becomes. The shorter wheelbase also causes the tires to move closer to the pinch seam as the axles move toward each other.
The RK 3.5" Max Travel Suspension that I have and that you are installing, along with all of the RK xfactor kits, have longer rear adjustable control arms that will move the rear axle back an inch. There isn't anything special that you will have to do for it. Follow the lift installation instructions and you will be fine. The stock rear driveshaft bolts up with no problems.
I think of the longer rear control arms as a mini long arm setup for the rear without modding the control arm brackets. The nice thing is that you still retain about the same wheelbase length as the Jeep had when stock for better ride quality and you don't have to trim the pinch seam to keep the tires from hitting it. It also keeps the tires centered in the wheel well which not only looks better when viewing your Jeep from the side, it helps with clearance issues when stuffing your tires in the fenders during full articulation situations.
As an added bonus, the 3.5" Max Travel suspension has accounted for roll center correction with the rear trackbar bracket and front draglink flip kit. Your Jeep should steer and corner as well or better than stock.