The Air Lift 88339 LoadLifter 5000 Helper Spring Kit from XDP will improve the handling and safety in your 2011-2015 GM 3500 (Cab & Chassis).

Next-Level Air Springs.

All the goodies of the LoadLifter 5000 air spring kit with an internal jounce bumper inside give you the ultimate lift, ride comfort, and safety.

Internal Jounce Bumper Adds One More Layer of Awesome.

The Air Lift internal jounce bumper helps to absorb shock, even with zero air pressure. What more could you ask for?

Up To 5,000 Lbs. Of Load Leveling Greatness.

These air springs beef up your existing suspension to boost your safety and comfort when hauling massive loads.

• Air Lines
• (2) Air Springs
• Schrader Valve
• Maintenance Free
• All Necessary Mounting Brackets
• Replaces Factory Jounce Bumper
• Safely Run With Zero Air Pressure
• Fully-Illustrated Installation Guide
• Provides Three-Stage Ride Comfort
• Eliminates Harsh Jarring On Rough Roads
• Includes Hardware Needed For Installation
• Internal Jounce Bumper Prevents Damage When Driving With Empty Air Bags