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Turn a permanently squatted truck into an adjustable front-and-rear suspension setup with this MaxTrac, Universal Air, and airmaxxx package. Designed for compatible 2007–2016 Chevy Silverado 1500 and GMC Sierra 1500 trucks, this system combines a MaxTrac 7\" front suspension lift with an adjustable rear air spring system.
The rear setup uses Universal Air U9000 bags and a complete onboard air system, allowing you to raise the rear when additional height is needed instead of being locked into a permanent nose-high stance.
Vehicle Fitment
2007–2016 Chevrolet Silverado 1500
2007–2016 GMC Sierra 1500
IMPORTANT 2014–2016 FITMENT:
Trucks must have CAST STEEL LOWER CONTROL ARMS.
Does NOT fit stamped steel or aluminum lower control arm applications unless compatibility is otherwise verified.
Vehicle must also be compatible with the MaxTrac 941370 suspension system.
What\'s Included
MaxTrac 7\" Front Suspension Lift Kit – Part #941370
Rear Bolt-On Air Spring System
(2) Universal Air U9000 Rear Bags
(2) airmaxxx X-Series Compressors
5-Gallon 7-Port Seamless Aluminum Air Tank
airmaxxx Dual Compressor Wiring Kit
(2) 1/2\" Dual X-Series Fast Valves
AVS 3-Switch Controller
1/2\" Air Hose & Fittings
(2) Water Traps
165–200 PSI Pressure Switch
Front 7\" MaxTrac Suspension Lift
The MaxTrac 941370 front suspension system provides the tall 7\" front lift used for this package.
Paired with the adjustable rear air system, the truck can retain the aggressive lifted-front appearance while giving you the ability to raise the rear toward a more level stance when needed.
Universal Air U9000 Rear Air Springs
Part Number: U9000
Style: Air House U9000 Mini XXL
Design: Compact Single-Bellow Air Spring
Collapsed Height: 4.25\"
Extended Height: 15\"
Maximum Diameter: 5.25\"
Optimum Ride Height: 5.5\"–9.5\"
Port Size: 1/4\" NPT
Lift Force: Up to 1,900 lb at 115 PSI per bag
Burst Tested: 537 PSI
Construction: Heavy-Duty Thick Rubber
Caps: Machined 6061 Aluminum
Mounting: Industry-Standard Bolt Pattern
Rear Air-Adjustable Leveling System
The rear system is designed to raise the back of the truck toward the height of the lifted front suspension. Instead of a fixed squat, the U9000 air springs give you adjustable rear suspension height within the limitations of the complete suspension setup.
With up to 15\" extended height, the U9000 is well suited to applications requiring substantial air spring travel.
Dual X-Series Onboard Air System
Dual airmaxxx X-Series compressors provide the air supply for the rear suspension system.
200 PSI Maximum Pressure
100% Duty Cycle @ 200 PSI
2.2 CFM per Compressor
Maximum Draw: 35 Amps Each
Internal Cooling Fans
Thermal Protection
3/8\" Stainless Braided Leader Hoses
Check Valves & Rubber Isolator Feet
The dual compressors feed the 5-gallon seamless aluminum tank, while the 165/200 PSI pressure switch automatically controls compressor cycling.
1/2\" Fast Valve Control
The included 1/2\" X-Series fast valves provide high-flow air control for faster rear suspension adjustment.
An AVS 3-switch box provides manual control, while the included 1/2\" air line, fittings, water traps, wiring, tank, and compressors complete the onboard air portion of the package.
Key Features
7\" MaxTrac front suspension lift
Adjustable rear air suspension
Designed for squat-to-level suspension builds
(2) Universal Air U9000 rear bags
Dual airmaxxx X-Series 200 PSI compressors
5-gallon seamless aluminum tank
Dual 1/2\" fast valves
AVS 3-switch controller
1/2\" air line and fittings
Dual water traps
165 PSI ON / 200 PSI OFF pressure control
Complete onboard air components included
Rear height can be adjusted to suit the vehicle setup
Important Fitment & Installation Notes
2014–2016 trucks require CAST STEEL lower control arms.
Not intended for stamped steel or aluminum lower control arm applications unless compatibility is separately verified.
Professional installation by a suspension shop experienced with lifted trucks and air suspension systems is strongly recommended.
Final rear height depends on suspension geometry, air spring mounting position, air pressure, vehicle weight, and the complete truck configuration. The U9000 load rating does not increase the vehicle\'s factory GVWR or payload rating.
Verify air spring, frame, axle, brake line, driveshaft, shock, exhaust, wheel, and tire clearance throughout the complete suspension travel before driving.
Some trimming, adjustment, fabrication, or minor modification may be required depending on the individual truck setup.
Squat Correction & Road Use
This package provides the components needed to raise the rear of a squatted truck toward a more level ride height. It may help owners configure a truck to comply with applicable vehicle-height or suspension requirements, but installation of this kit does not by itself guarantee legal compliance.
Suspension and vehicle-height laws vary by jurisdiction. The buyer and installer are responsible for verifying the completed vehicle meets all applicable state and local requirements before operation on public roads.
Before Ordering
Verify your truck\'s year, model, drivetrain, lower control arm material, MaxTrac 941370 compatibility, existing suspension modifications, wheel/tire clearance, and intended front and rear ride heights before purchasing.
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