Monthly inspections should check for line abrasions, fitting corrosion, and airbag wear. Use ethanol-free air to prevent moisture damage, with annual dryer filter replacements. Lubricate moving parts with silicone-based sprays, not petroleum products. Winter users must install air line heaters to prevent freezing. Hardline’s anodized fittings resist salt corrosion better than standard brass components.
| Component | Inspection Frequency | Recommended Action |
|---|---|---|
| Air Lines | Every 3,000 miles | Check for kinks/rubbing |
| Airbag Pistons | Seasonal | Clean debris with nylon brush |
| Compressor | 6 months | Test duty cycle & CFM output |
For cold climate operation, Hardline recommends installing their ColdPac auxiliary system. This heated air reservoir prevents moisture accumulation that can freeze valves in sub-zero temperatures. Unlike conventional systems, the dual-stage air dryer removes 98% of humidity through molecular sieve technology. Annual fluid checks should include testing the dielectric strength of electronic height sensors – values below 15kV indicate moisture penetration requiring immediate attention.
How Does Hardline Compare to Other Aftermarket Air Suspension Brands?
Unlike universal kits, Hardline specializes in vehicle-specific configurations with 30% thicker air line walls (6mm vs. 4mm industry standard). Their proprietary ShockWave air springs combine shock and air spring in one unit, reducing complexity versus competitors like Air Lift. Testing shows 50,000+ cycle durability – 25% higher than average market claims.
| Feature | Hardline | Industry Average |
|---|---|---|
| Max Pressure Rating | 300 PSI | 200 PSI |
| Line Burst Strength | 700 PSI | 450 PSI |
| Warranty Period | 5 Years | 3 Years |
Third-party testing reveals Hardline’s military-grade thermoplastic lines maintain flexibility at -40°F while resisting ozone degradation up to 300°F. Their billet aluminum valve blocks feature 30-micron filtration versus the standard 50-micron filters used by competitors. For performance applications, the company’s ActiveDamp software algorithm adjusts pressure 100 times per second based on G-force inputs – three times faster than most aftermarket systems. This real-time adaptation prevents body roll during aggressive maneuvers without sacrificing straight-line comfort.
What suspension gives the best ride?
Why Choose Hardline Air Suspension Over Conventional Systems?
Hardline systems offer superior adjustability, enabling instant height adjustments for improved aerodynamics, ground clearance, or cargo loading. They provide smoother rides by absorbing road imperfections better than fixed-rate springs. Unlike OEM air suspensions, Hardline uses reinforced air lines and industrial-grade components for extreme durability under high-pressure conditions (typically 200-300 PSI).
How to Install Hardline Air Suspension: A Step-by-Step Guide
Installation requires mounting air springs, running hardened stainless steel air lines from the tank to each corner, installing a high-flow compressor (like the Viair 485C), and wiring the control system. Critical steps include ensuring proper line routing away from heat sources, programming ride height sensors, and pressure-testing connections at 1.5x operating PSI before final calibration.
Which Vehicles Are Compatible With Hardline Air Suspension Kits?
Hardline offers direct-fit systems for 95% of trucks (Ford F-150 to Ram 3500), SUVs (Tahoe, Wrangler), and performance cars (Mustang, Corvette). Their modular design allows hybrid configurations – front air springs with rear helper bags for towing. Exclusive kits for lowered vehicles include adjustable camber arms to maintain alignment at extreme heights.
What Customization Options Does Hardline Air Suspension Offer?
Users can choose from 15 airbag pressure profiles (soft cruise to track-stiff), dual-path air lines for independent corner control, and programmable presets via Bluetooth app. Optional upgrades include thermal-resistant lines for turbocharged vehicles, dual compressors for faster adjustments (0-60 PSI in 8 seconds), and CNC-machined aluminum manifolds with 500+ PSI burst strength.
Are There Legal Restrictions on Hardline Air Suspension Use?
DOT regulations require minimum 4” ground clearance in deployed mode. Some states prohibit on-the-fly adjustments while moving – Hardline’s geofencing module can disable features in restricted zones. Commercial vehicles over 10,000 lbs GVWR need certified installation. Always check local laws; Hardline provides compliance documentation for all 50 states upon request.
Expert Views
“Hardline’s military-grade spec sets the bar,” says Jason Cole, 20-year suspension engineer. “Their patented AirCore lines withstand 700 PSI bursts – triple typical systems. For serious builders, the ability to fine-tune damping rates via air pressure alone eliminates costly shock replacements. It’s not just suspension; it’s a dynamic chassis platform that evolves with your build.”
Conclusion
Hardline air suspension delivers unmatched versatility for drivers needing customizable performance across varying conditions. With robust construction, advanced control features, and broad vehicle compatibility, it outperforms both stock and competing aftermarket systems. Properly maintained, these systems provide a decade of reliable service while transforming vehicle dynamics beyond traditional suspension capabilities.
FAQs
- Q: Can Hardline air suspension lift my truck for off-roading?
- A: Yes, their kits provide up to 12” lift over stock while maintaining proper CV joint angles.
- Q: How long do Hardline airbags last?
- A: 100,000+ miles under normal use, backed by a 5-year unlimited mileage warranty.
- Q: Does it affect towing capacity?
- A: Increases capacity by 35% when using integrated load-leveling mode.