When I installed my lunatics components rear spring kit. I had to remove the spare carrier and move the brake cable mounts. I installed the upper shock bar were red green did and found out after adding sand bags to simulate the weight of the bed that the shocks bottomed out. Had to move the bar to the top of the frame. Then after driving it for a while the springs setteled, had to move the rear mounts back 1in to get the spring eye off the frame.
My suggestion is to add weight to the rear, about 400lbs to see where everything sits.
Easier to fix now than after the bed is installed.
