Very easy. I added a 3 inch lift up front with spacers to the suspension. Dropped the XREAS all around. The RAS is easy to adjust 3 inches higher. The valve control arm is attached to a linkage control arm. Loosen the 12mm bolt attaching the linkage control arm and move it to the highest position. The rear will sit about 3 inches higher, the dash indicator will show it sitting at neutral position, the system will continue to function and keep it level no matter how much gear or people sit in the truck. Took 5 minutes to add 3 inches to the rear height. Rides great! I'll post pictures later if anyone is interested.