Thank you. I've been researching for weeks but wasnt sure about changing at the same time... attempting the install tomorrow. Wish me luck...You need to do each axle at the same time. So front together and then the rear together. (Front and rear separately)
Support the frame on jack stands up pretty high. Put the jack under the middle of the axle. Unbolt the shocks, the sway bar end links, loosen up the control arms. Lower the jack to lower the axle enough to get the springs out. Watch everything to make sure no electrical, diff breather tube, or brake lines are over extending. Install the spacers and reinstall/tighten.
Watch some you tube vids and read the instructions