Adjustable Rear Air Bag Mounts - 3" Axle (Weld-On)

Adjustable Rear Air Bag Axle Mounts (3" Axle) - #182-1001

Optimize your air suspension geometry with the GSI Adjustable Rear Axle Mounts. Designed specifically for 3" diameter axle tubes, these heavy-duty brackets provide the ultimate flexibility for custom rear-end setups. The unique adjustable design allows you to weld the bracket in front of or behind the axle, giving you the freedom to position your bags exactly where they need to be to clear 4-links, fuel tanks, or exhaust routing.

The GSI Advantage

• Heavy-Duty 1/4" Steel: While others use thinner materials, we’ve stepped up to 1/4" A36 high-strength steel. This 25% increase in thickness ensures a rock-solid, zero-flex mounting surface for high-pressure systems.

• Precision 6.5" Offset: Engineered for tight packaging without sacrificing performance, the center of the air bag mount sits exactly 6.5 inches from the start of the axle weld point. This allows you to tuck your bags closer to the axle while still providing ample clearance for chassis components.

• Versatile Orientation: These mounts can be clocked 360° and welded 6.5 inches in front of or behind the axle, making them the perfect solution for clearing custom notches or fuel cells.

• Fabricator-Friendly Dimensions: With an inner width of 4" and an outer width of 4.5", these brackets provide a substantial weld surface and a stable foundation for your suspension.

• Maximum Bellows Support: The 4.5" wide top plate (with a 4.5" overall diameter footprint) provides a full, flat foundation for your air springs, preventing the bellows from "ballooning" and increasing the lifespan of the bag.

Design & Construction

• Material: 1/4" A36 High-Strength Steel

• Axle Fitment: Engineered for 3" Diameter Axle Tubes (Standard C10, OBS, Ford 9")

• Mounting Offset: 6.5" from center of bag mount to start of axle weld

• Profile Height: 2.75" vertical bracket height for increased rigidity 

• Inner Width: 4"

• Outer Width: 4.5"
  

• Installation: Weld-on only (Requires professional welding for safety)

• Bag Compatibility: D2500 & D2600 (Double Convoluted)

Vehicle Applications

• Classic Truck Rear Air-Ride Conversions (C10, F100, OBS)

• Custom 4-Link and Triangulated Link Suspensions

• High-Payload Trailer Air Suspension Systems

• Heavy-Duty Performance Street Machine Chassis

What's Included

• (2) Adjustable Rear Air Bag Axle Mounts (1/4" Steel)

Note: Sold as a pair. Raw steel finish; requires prep and paint/powder coat after welding.

Questions? Contact Us

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1 (877) 951-1890 – Toll Free