Pacbrake is a registered trademark of Pacbrake Co.
HP10002 & HP10089 AMP AIR SUSPENSION KITS
L5682
4
L5682_REV19_ECN1-2194_01.13.2020
4
INSTALLATION ON THE VEHICLE
1 Raise the vehicle enough for a comfortable working height with a floor jack and
support the axle with jack stands.
2 Remove the jounce bumpers on both sides.
5
ATTACH THE UPPER BRACKET
Using the M10 x 35 capscrews provided, fasten the upper air spring mounting
bracket to the frame as shown in the photo. Torque the capscrews to 30 ft-lbs, 40
N•m. The upper brackets must be installed to the jounce bracket with the air inlet
fitting cutout and rectangular holes in the bracket facing towards the center of the
vehicle.
6
INSTALLING THE AIR SPRING
Insert the air spring between the jounce bumper mounting plate and the axle tube.
Some vehicles may require the frame to be jacked up slightly to attain clearance.
NOTE:
Air fittings must be positioned towards the center of the vehicle. The outer
rear carriage bolts may be installed now. The outboard rear carriage bolt on the
passengers side must be between the brake line and the axle tube. On the drivers
side both rear carriage bolts must be in between the brake line and the axle tube.
Passenger’s side is shown in photo.
Loosely install two of the 11/4 long carriage bolts through both upper mounting
plates. Install the flat washers and nylock nuts provided. Loosely install the axle
straps to the carriage bolts using the flat washers and nylock nuts provided.
7
ADJUSTING THE AIR SPRING
Adjust the air spring assembly to the upper bracket by moving the lower bracket
on the axle tube to ensure the air spring is correctly aligned, as shown in the
Air
Spring Alignment
diagram below:
AIR SPRING ALIGNMENT
INCORRECT
CORRECT
DOUBLE CONVOLUTED 4 WHEEL
DRIVE AIR SPRINGS SHOWN HERE
STEP 4
STEP 5
STEP 7
STEP 6
