Removal ("F" Series Super Duty)
- With the rear wheels on the ground, lift the frame to obtain an 8-inch (+/- 1/4 inch), clearance between the bottom edge of the jounce bumper bracket and the top of the axle tube. See Figure .
- The suspension is now in the correct position for installing the pre-indexed height sensing valve. Remove the nut holding the linkage arm to the height sensing valve and disconnect the linkage arm.
- Remove the flow bolt holding the flexible brake hose to the valve. Disconnect the brake line from the valve. Remove the two (2) bolts securing the height sensing valve to its mounting bracket, and remove the valve. See Figure .