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Congratulations - your new LevelTow Helper Springs are quality products capable 
of improving the handling and comfort of your vehicle. As with all products, proper 
installation is the key to obtaining all of the benefits your kit is capable of delivering. 
Please take a few minutes to read through the instructions to identify the components and 
learn where and how they are used. It is a good idea to start by comparing the parts in 
your kit with the parts list below.

Components

Hardware

WARNING!

Do not inflate this assembly when it is

unrestricted. The assembly must be restricted by

the suspension or other adequate structure. Do

not inflate beyond 100 P.S.I. Improper use or

over inflation may cause property damage or

severe personal injury.

81214001 1999-2006, 2007 CLASSIC GM 1500 2WD

 

2320

I

NSTALLATION

 I

NSTRUCTIONS

Congratulations - your new Air Helper Springs are

quality products capable of improving the handling and

comfort of your vehicle.  As with all products, proper

installation is the key to obtaining all of the benefits your

kit is capable of delivering.  Please take a few minutes to

read through the instructions to identify the components

and learn where and how they are used.  It is a good idea

to start by comparing the parts in your kit with the parts

list below.

The  heart  of  the  kit  is,  of  course,  the  air  springs.

Remember  that  the  air  springs  must  flex  and  expand

during operation, so be sure that there is enough clearance

to do so without rubbing against any other part of the

vehicle.

Be sure to take all applicable safety precautions during

the installation of the kit.  The instructions listed in this

brochure and the illustrations all show the left side of the

vehicle. To install the right side assembly simply follow the

same  procedures.

This kit includes inflation valves and air lines for each

air spring. This will allow you to compensate for unbal-

anced loads. If you would rather have a single inflation

valve system to provide equal pressure to both air springs,

your dealer  can supply the optional "T" fitting.

I

MPORTANT

!

For your safety and to prevent possible damage to

your vehicle, do not exceed the maximum load

recommended by the vehicle manufacturer (GVWR).

Although your Air Helper Springs are rated at a  maximum

inflation pressure of 100 psi, this pressure may allow you

to carry too great a load on some vehicles.  Check your

vehicle owner’s manual or manufacture plate on

driver side door  for maximum loads listed for your

vehicle.

When inflating your Air Helper Springs, add air

pressure in small quantities, checking pressure fre-

quently during inflation.  The air spring requires much

less air volume than a tire and, therefore, inflates much

quicker.

21-8331

03-06 NAD-35133

WARNING:

Do  not  inflate  this  assembly    when  it  is

unrestricted.  The assembly must be restricted by

the suspension or other adequate structure.  Do

not inflate beyond 100 psi   Improper use or over

inflation may cause property damage or severe

personal injury.

P

ARTS LIST

AIR SPRINGS

9000

2

UPPER BRACKETS

5377

2

LOWER BRACKETS

5505

2

3/8" NUT PLATES

5245

4

DISK

5260

2

BRACKET STRAPS

5086

2

BRAKE LINE BRACKET(Ford) 5375

1

AIR LINE TUBING

1

3/8"-16 X 1-1/2" HEX BOLTS

8

3/8"-16 FLANGE LOCK NUTS

8

3/8"-16 X 3/4" HEX BOLTS

6

3/8" SPECIAL FLAT WASHERS

8

3/8"-16 X 3.62" X 3" BAIL CLAMP

4

5/16" FLAT WASHERS

4

PUSH TO CONNECT

INFLATION VALVES

3098

2

VALVE CAPS

2

PUSH TO CONNECT

ELBOW FITTINGS

3101

2

NYLON TIES

6

THERMAL SLEEVES

2

Installation of this kit requires a

minimum of 6" of clearance between the

tire side wall and the vehicle frame and a

1/2" of clearance around the air spring

when inflated.

ATTENTION:

Due to frame to tire clearance, this kit may not

fit vehicles with some brands of 5

th

 Wheel or

Gooseneck hitches as this kit must be bolted to

the vehicle frame and not the hitch plates.

AIR SPRINGS  

 

 

9000    

2

UPPER BRACKETS   

 

5377    

2

LOWER BRACKETS  

 

5505    

2

3/8" NUT PLATES    

 

5245    

4

DISK    

 

 

 

5260    

2

BRACKET STRAPS   

 

5086    

2

BRAKE LINE BRACKET(Ford)   5375    

1

3/8"-16 X 1-1/2" HEX BOLTS  

 

 

8

3/8"-16 FLANGE LOCK NUTS  

 

 

8

3/8"-16 X 3/4" HEX BOLTS   

 

 

6

3/8" SPECIAL FLAT WASHERS    

 

8

3/8"-16 X 3.62" X 3" BAIL CLAMP   

 

4

5/16" FLAT WASHERS  

 

 

 

4

NYLON TIES  

 

 

 

 

6

THERMAL SLEEVES  

 

 

 

2

Summary of Contents for 81214001

Page 1: ...mfort of your vehicle As with all products proper tallation is the key to obtaining all of the benefits your is capable of delivering Please take a few minutes to d through the instructions to identify the components d learn where and how they are used It is a good idea start by comparing the parts in your kit with the parts below WARNING Do not inflate this assembl unrestricted Theassemblymust th...

Page 2: ...3 8 16 BAIL CLAMP ...

Page 3: ...t is needed Insert the bail clamp into the lower bracket Next attach the lower bracket and disk to the air spring using the 3 8 x 3 4 hex bolt see Figure A Note Finger tighten the bolt securing the lower bracket and disk allowing the air spring to move freely This will be tightened after alignment in Step 6 STEP 3 ATTACH LOWER BRACKET TO LEAF SPRING Place the assembly on the left side on top of th...

Page 4: ...gtwo5 16 flatwashersper valveassupports seeFigure E Routethetubingfromtheairhelperspringtotheinflationvalve avoidingdirectheatfromtheengine exhaust pipe and away from sharp edges The air line tubing should not be bent or curved sharply as it may buckle with age Secure thetubinginplacewiththenylontiesprovided Pushtheendoftheairlinetubingintotheinflationvalveasillustrated seeFigure E STEP 9 CHECK TH...

Page 5: ... Smart Sensor Mounting Bracket 70014456 1 Sensor Linkage 31980011 1 Linkage Axle Bracket 70011429 1 Control Panel Bracket 70011439 1 Airline Fitting mounted in compressor 31957016 1 Main Activation Switch 35970000 1 Manual Control Switch 70011413 1 Main Wire Harness 31900051 1 Axle Bracket Clamp 99000005 1 1 4 TEE Fitting 31954400 1 1 4 Fitting for airsprings Straight 90 Degree 31954000 31954201 2...

Page 6: ...not get in the way of the Air springs The first step to doing the install with the vehicle at ride height measure the lip of the fender to the ground at the center of the wheel and write it down Measurement_________________ This measurement will be used as a refer ence once you have the compressor system installed 2 Unpack the wiring for the LevelTow sys tem and lay it out This will give you an id...

Page 7: ...om pressor goes onto the plate 4 The compressor needs to be mounted on the frame rail with the dryer up Attach the compressor bracket to the frame with 4 3 8 16 x 1 Thread Forming Bolts supplied in the kit Drill a 5 16 Hole for the bolts NOTE Before drilling any hole be sure to check and see if there are any brake lines fuel lines or wires on the other side of the surface you are drilling 5 The Ax...

Page 8: ...arm will need to swing up opposite the direction of the wires as the suspension is being compressed Attach the sensor bracket to the frame with 4 self drilling screws supplied with the kit NOTE The sensor can be mounted on the inside or outside of the frame Make sure the linkage and arm can go through its entire travel without hitting any obstructions 8 This diagram shows how the clamp sticks thro...

Page 9: ... little at a time until you get the desired length of the linkage assembly If for some reason you must pull the rod out of the end it is best done by twisting the end while pulling on it 11 Mount the control panel in a convenient location Install the Power Button and Manual Control Rocker into the panel The Power Button gets installed into the round hole The nut that is on the button is used to at...

Page 10: ... to the Battery with the fuse holder installed within 18 of the Battery Yellow Wire This wire needs to go to a switched 12 volt power source This wire should only have power when the key is on Black Wires These wires go to a chassis ground They can go to one of the screws attaching the compressor to the frame Relay Will need to be attached to the frame with a self drilling screw supplied in the ki...

Page 11: ...ssible Insert the end of the airline into the fitting pushing it in as far as possible Route the airline from the airspring to the compressor keeping it away the exhaust pipe and sharp edges If it is neces sary to run the line over a sharp edge use a supplied thermal sleeve over the airline to protect it The sleeve is installed by sliding it over the airline to the area where the line needs protec...

Page 12: ... operating in the wrong direction You can fix this problem without remounting the sensor by swapping the blue and green wires in the har ness at the sensor To do this with the truck turned off simply unplug the harness from the sensor Using a small screwdriver pop the purple retainer out of the plug by prying up on each end of it After removing the retainer if you look into the end of the plug you...

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