STEP 1: PREPARE THE VEHICLE
Lift the vehicle at the rear axle until the vehicle is not supported by the leaf spring anymore. Make sure the vehicle is secure and not liable to roll away or unintentionally lower.
STEP 2: INSTALL THE AIR FITTING
Pre fit the kit by mounting the brackets onto the spring and by fitting the elbow for the air supply in the spring. Install the elbow in the air inlet hole on the top plate of the bellows. Tighten until the elbow is pointing towards the centre of the vehicle. Next, cut the air line into two equal lengths, making the cut as square to the axis of the tubing as possible. Insert the air line into the elbow and push until a positive click is felt.
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Step 1 – Vehicle Preparation
Remove the negative battery cable. With the vehicle on a solid level surface, chock the front wheels. Using a jack rated for the weight of your vehicle, raise the wheels off the ground. Lower the vehicle frame onto jack stands rated for the vehicle weight, making sure the suspension is fully extended. (Do not use wood or concrete blocks to support the vehicle.)
Step 2 – Remove the Coil Spring
Put a jack under the axle on the left side of the vehicle. Remove the lower bolt from the shock absorber. Lower the axle until the coil spring can be removed. Caution: DO NOT put tension or strain on the flexible brake line. Remove the jounce bumper located in the coil spring. The jounce bumper will not be reused. Drill a 3/8″ hole in the center of the lower spring seat for the air line to pass through. See Figure “C”.
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Gross Vehicle Weight Rating (GVWR)
IMPORTANT: The installation of this kit does not alter the GVWR or payload of the vehicle. Check your vehicle’s owner’s manual and do not exceed the maximum load listed for your vehicle.
Gross Vehicle Weight Rating- The maximum
allowable weight of the fully loaded vehicle (including passengers and cargo). This number – along with other weight limits, as well as tire, rim size and inflation pressure data – is shown on the vehicle’s
Safety Compliance Certification Label.
Payload- The combined, maximum allowable weight of cargo and pasengers that the truck is designed to carry. It is GVWR minus the Base Curb Weight.
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FRONT STRUT REMOVAL
1. Loosen the front wheel lugnuts.
2. Raise the vehicle and support it on jack stands.
3. Remove the front wheels.
4. Disconect the air line fitting and unplug the electrical connectors for the height sensor and solenoid.
5. Then vent the air from the bag.
6. Be sure to mark the position of the strut at the bottom where it bolts to the spindle.
7. Remove the nuts and bolts from the strut.
8. Be sure to disconnect the brake hose from the strut.
9. Now remove the upper three nuts where it attaches to the shock tower.
10. Now dismount the strut from the vehicle.
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1. Raise and support vehicle at a safe, comfortable working height. Let the front suspension hang freely.
2. Remove coil spring, shock absorber, and bump stop. Refer to factory service manual for proper disassembly procedure.
3. A portion of the frame must be trimmed to clearance for the air spring. Mostly to the outside of the pocket but some must be done to the inside as well.
4. Apply thread sealant to a straight air fitting and screw it into the top of the air spring.
5. Place the upper air spring bracket on top of the air spring and fasten with two 3/8” Nyloc nuts and flat washers.
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1. Raise and support vehicle at a safe, comfortable working height. Let the front suspension hang freely
2. Remove oem coil spring and shock absorber. Refer to factory service manual for proper disassembly procedure.
3. Remove the factory shock nut from the top of the lower control arm. This is best done with a chisel and then ground smooth.
4. The factory bump stop must also be removed. It has a nut on the bottom of the arm.
5. The upper coil spring retainer needs to be taken out as well. It is secured with rivets that need to be ground down or drilled out from the top. Some cars may have bolts instead of rivets. Note: If this is not done the top of the Shockwave will come in contact with the retainer and permanently damage the Shockwave.
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