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INSTALLATION INSTRUCTIONS
6012Air Spring Kit
1999-2006 Chevrolet/GMC 1500 2WD & 4WD
Thank you for purchasing a quality Hellwig Product.
PLEASE READ THIS INSTRUCTION SHEET COMPLETELY BEFORE STARTING
YOUR INSTALLATION
IMPORTANT NOTES
DO NOT INFLATE AIR SPRINGASSEMBLYUNLESS IT HAS BEEN
PROPERLY INSTALLED ON VEHICLE.
DO NOT INFLATE AIR SPRINGS OVER 60 PSI
AMINIMUM OF 5-10 PSI MUST BE MAINTAINED IN AIR SPRINGS
AFTER INSTALLATION FOR WARRANTYTO BE VALID. FAILURE TO
KEEPMINIMUM PRESSURE INAIR SPRINGS WILLVOID WARRANTY.
THIS UNIT IS DESIGNED TO INCREASE THE LEVELLOAD CARRYING
CAPACITY OFYOURVEHICLE. NEVER LOAD THE VEHICLE THIS
UNIT IS INSTALLED ON BEYOND THE MANUFACTURER’S MAXIMUM
GROSS VEHICLE WEIGHT RATING.
OVERINFLATIONAND IMPROPER USE MAY RESULT IN PERSONAL
INJURYAND/OR DAMAGETO YOUR VEHICLEAND PROPERTY.
6012 ( R-6012 ) 12/06/06
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559-734-7451 800-367-5480 FAX 559-734-7460
BEFORE STARTINGYOUR PROJECT
WHEN LIFTING A VEHICLE WITH A JACK, BE SURE TO SET THE PARKING BRAKE AND USE
SAFETY STANDS.
ENSURE THAT THE INSTALLATION OF COMPONENTS WILL NOT CRUSH OR DAMAGE
FUEL AND BRAKE LINES OR ELECTRICAL HARNESSES.
BEFORE DRILLING ANY HOLES, ENSURE THAT ALL ELECTRICAL WIRES, FUEL LINES,
BRAKE LINES, BRAKE HOSES AND ANY OTHER COMPONENTS ARE MOVED OR
PROTECTED TO AVOID DAMAGE FROM DRILLING ANY HOLES .
DO NOT ATTEMPT ANY MODIFICATIONS TO THE VEHICLE OTHER THAN THOSE
OUTLINED IN THIS INSTRUCTION SHEET. IF ANY INTERFERENCE WITH THE GAS TANK,
FUEL LINES, BRAKE LINES, EXHAUST PIPE, ETC. EXISTS, STOP YOUR INSTALLATION AND
CALL HELLWIG PRODUCTS FOR TECHNICAL HELP.
IF WHEELS ARE REMOVED FOR INSTALLATION OF KIT, CHECK MANUFACTURERS
SPECIFICATIONS FOR PROPER LUG NUT TORQUE BEFORE REINSTALLING WHEELS.
WHEN CUTTING AIR BRAKE TUBING A SQUARE CUT IS REQUIRED OR LEAKAGE MAY
RESULT.
2 Wheel Drive 4Wheel Drive
1. Park vehicle securely and set parking
brake and chock wheels. Remove factory
bump stops from vehicle by removing
nuts from studs using a 15mm wrench or
1
socket
2. Install elbow fitting in port of air spring. Torque fitting to
approximately 20 ft-lb. Make sure that fitting is oriented as
shown in photo.
2
6012 ( R-6012 ) 12/06/06
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559-734-7451 800-367-5480 FAX 559-734-7460
3
Short End to front of vehicle
Front of Vehicle (Pass Side Shown)
This side toward wheel
Attach air spring to plate using countersunkhole.
Long End to rear of vehicle
This side toward center of axle
3. Lay out base plate as shown in photo. The air spring mounting hole is countersunk
on both sides to allow the plate to be oriented correctly for both the left and right sides
of the vehicle. (Passenger side shown) Attach air spring to plate using 3/8” flathead
bolt. Tighten to 20 ft-lb.
4. Install heat shield and frame bracket as
shown. (Passenger side shown. Driver’s side
does not require heat shield.) Torque nuts to
20 ft-lb.
4
6012 ( R-6012 ) 12/06/06