Helix HEXABBTTK4 HD Rear Triangulated 4-Link Kit with Adjustable Bolt-On Air Ride Brackets

The Helix HEXABBTTK4 is a heavy-duty rear triangulated four-link kit paired with adjustable bolt-on axle air bag brackets, engineered for hot rods, muscle cars, and custom builds running air suspension. This kit delivers the geometry control of a triangulated 4-link combined with a versatile bolt-on bracket solution designed for 3-inch rear axles.

Four-Link Kit Features:

• 28-inch main bars and 18-inch secondary bars for maximum suspension travel and tuning flexibility
• Tubing constructed from 0.156-inch wall steel — the same standard used in professional drag racing applications
• 25mm bar thickness with 4.1mm wall tubing for superior rigidity
• Three coil-over bracket positions for flexible shock mounting
• Special CNC-machined threaded rod ends thread over 2.5 inches into the 4-link tubes for enhanced strength and adjustability
• Heavy-duty polyurethane sleeved bushings for extended service life and reduced wear
• Completely TIG welded construction for maximum strength
• All mounts CNC-cut from 3/16-inch steel plate
• Fully plated mounting hardware included

Adjustable Bolt-On Air Bag Bracket Features:

• Includes a pair of adjustable rear 3-inch axle air bag brackets with hardware
• Fabricated from heavy-duty 3/16-inch steel with a black oil-soak anti-rust coating
• Mounts over or under the axle for installation flexibility
• Bolts to the frame and welds onto the axle
• Includes 2 axle brackets, 2 upper bag brackets, 2 lower bag brackets, and 16 Grade 8 bolts and nuts

Note: Air bags are not included with this kit. Welding is required for axle bracket installation. Compatible with 3-inch and 2-3/4-inch axle tubes. Backed by Helix's limited lifetime warranty.