I have a 2013 Silverado and all I had to do is disconnect the sway bar and they went right in. Had to have the alignment corrected as the toe was way off after the new struts were installed. The new Rancho 9000 load leveling struts lived up to the name and the truck now sits level. Best money I ever spent.
Easy install. Bought same shocks for rear.
The install was super easy. Took about 2 hours for everything. Wish I read deeper to see there was a apraxia tool needed for the 2500 torsion keys. Threw it out on Facebook and a buddy had one. Took longer to put tools always than do the lift. The shocks looked good so I bought matching for the rear. Another $100.