The droop also needs to set. This is done normally with droop blocks and a gauge. Unfortunately I misplaced my blocks and had to use 2 gauges for this adventure.

The adjustment is done by the grub screw on the arms. It adjusts the droop by raising the arm against the chassis. Some people have switched to a button head screw plus tubing to prevent movement of the grub screw as the car gets moving.

Lift the car up and let it drop freely on the board. The flat part of the chassis should sit against the board. The droop height is measured at the threaded part of the axle, not the hub. Make sure all four corners are at preferred setting.