2
Technical Support
1-800-248-0892
Ext. 2
I. Getting Started
1. Determine the Normal Ride Height. The Normal Ride
Height is the distance between the bottom edge of the
wheel-well and the center of the hub with the vehicle in
the “as delivered” condition. In some cases, Normal Ride
Height is not perfectly level.
a. Remove unusual loads and examine your vehicle from
the side to ensure it is on a level surface (Figure 1).
b. If necessary (in cases where your leaf springs are
sagging badly), use a jack to raise the rear end so that
the vehicle achieves the original “as delivered” ride
height.
2. Measure the distance between the center of the hub and
the bottom edge of the wheel well (Figure 2). This is the
Normal Ride Height. Enter the measurement below:
NORMAL
RIDE HEIGHT: __________ inches
Tools Needed
IMPORTANT: Your vehicle may be equipped with a rear brake proportioning valve. Any type of load assist
product could affect brake performance. We recommend that you check with your dealer before installing this
type of product. If your vehicle DOES NOT have a rear brake proportioning valve or is equipped with an anti-
lock type brake system, installation of a load assist product will have NO EFFECT ON BRAKE SYSTEM
PERFORMANCE.
IMPORTANT: Failure to maintain correct minimum pressure (or pressure proportional to load), bottoming
out, overextension, or rubbing against another component will void the warranty.
DANGER: Compressed air can cause injury and damage to the vehicle and parts if it is not handled properly.
For your safety, do not try to inflate the air springs until they have been properly secured to the vehicle.
1
/
2
",
9
/
16
", and
3
/
4
" open-end or box wrenches
Crescent Wrench
Ratchet with
3
/
8
"
, 9
/
16
" and
1
/
2
" deep well sockets
5
/
16
" and
3
/
8
" drill bits (very sharp)
Heavy Duty Drill
Torque Wrench
Hose Cutter, Razor Blade, or Sharp Knife
Hoist or Floor Jacks
Safety Stands
Safety Glasses
Air Compressor, or Compressed Air Source
Spray Bottle with Dish Soap/Water Solution
Figure 1
Figure 2
