ReadyLIFT 3" Rear Air Spacer

 

The ReadyLIFT 3 Inch Rear Air Spacer Kit gives factory rear air suspension trucks the rear height support needed when a compatible front suspension lift changes the truck's stance. It is built for heavy-duty dually diesel applications that keep the original rear air system in place, making it a focused solution for customers who tow, haul, or use the truck for demanding work. The kit helps the rear of the truck match the lifted front ride height while preserving the purpose of the factory air suspension system.

Factory rear air suspension is valuable because it helps the truck manage changing load conditions, trailer tongue weight, and cargo weight without feeling like a disconnected add-on. This spacer kit is designed around that system rather than replacing it, so the truck can maintain the air ride function customers already rely on. For lifted heavy-duty trucks, that balance matters because rear ride height affects stance, load control, and how confidently the truck sits under a trailer or payload.

The spacer design supports the rear air suspension after a lift is installed, helping the truck avoid a nose-high or tail-low appearance. Customers using a ReadyLIFT heavy-duty coil spring lift can use this kit to complete the rear air-equipped setup with matched rear suspension height. The result is a cleaner lifted profile that still keeps the factory rear air suspension as part of the truck's working capability.

This kit is especially useful for dually diesel owners who want the look and added height of a suspension lift without giving up the original rear air system. It fits the role of a companion rear suspension component, not a universal spacer, so fitment must be matched to the correct heavy-duty truck and suspension package. When installed with the correct ReadyLIFT lift system, it helps the rear suspension sit at the intended lifted height and keeps the truck visually balanced from front to rear.

Towing and hauling builds benefit from rear suspension parts that are made for predictable fitment rather than improvised height changes. The ReadyLIFT rear air spacer approach keeps the upgrade purpose-built and avoids mixing parts that were not designed around the factory rear air layout. Customers get a cleaner way to support a lifted dually truck while keeping the original air suspension architecture intact.

Whether customers are upgrading for towing stance, heavy-duty work use, or a balanced lifted profile, the ReadyLIFT 3 Inch Rear Air Spacer Kit delivers rear air suspension compatibility with matched lift support. Now Available at LEER!

 

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Features & Specifications

Product Type: Rear air suspension spacer kit

Brand: ReadyLIFT

Rear Lift Height: 3 inches

Vehicle Fitment: select Ram heavy-duty dually diesel trucks with factory rear air suspension

Suspension Type: factory rear air suspension

Recommended Pairing: ReadyLIFT 3 Inch coil spring lift system for rear air-equipped trucks

Functionality:

• Helps match rear ride height to a compatible front suspension lift
• Maintains use of the factory rear air suspension layout
• Supports a more balanced lifted stance on heavy-duty dually trucks
• Helps preserve the truck's working profile for towing and hauling builds
• Provides a purpose-built rear spacer solution for rear air-equipped applications
• Reduces the need for improvised rear height changes during a lift install
• Works as a companion component for a matched ReadyLIFT heavy-duty suspension setup

 

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Why Choose

This product is ideal for customers who want rear air suspension compatibility, balanced lift height, and a cleaner towing stance for a heavy-duty dually build.

• Purpose-built for factory rear air suspension trucks instead of standard rear block applications
• Helps the rear of the truck sit correctly after a compatible front lift is installed
• Keeps the factory rear air system in the suspension plan for load-leveling support
• Gives towing and hauling trucks a more controlled, balanced profile
• Complements ReadyLIFT heavy-duty suspension systems with application-specific rear height support
• Helps avoid mismatched rear suspension height on air-equipped dually diesel trucks
• Supports a professional-quality lift result without removing the original rear air suspension design

 

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What's Included

• Rear air suspension spacers
• Application-specific mounting hardware
• Installation instructions when supplied with the kit

Note: Confirm included components before installation.

 

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Installation Notes

• Confirm the truck is equipped with factory rear air suspension before installation.
• Use with the compatible ReadyLIFT heavy-duty coil spring lift system for the intended rear ride height.
• Not intended for applications outside the supported heavy-duty dually diesel rear air suspension setup.
• Professional installation is recommended for correct suspension positioning and system inspection.

Buyer is responsible for use in accordance with applicable vehicle, road, off-road, towing, racing, and local laws.

 

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Warranty Information

ReadyLIFT suspension products are backed by warranty coverage for defects in materials and workmanship for the original purchaser when used within the product terms.

Warranty coverage typically excludes improper installation, misuse, modifications, overloading, tampering, impact damage outside warranty terms, or non-compliant use. Proof of purchase may be required for warranty claims.