Helix Triangulated Full Size Universal Four Link Kit. Putting a lot of horsepower through your rear end? Helixs New Heavy Duty Universal Triangulated 4-Link Kit is stronger than the rest! With the same 0.156 wall tubing that is the standard in drag racing applications, Helixs full-sized 4-link kit will remain straight and perfectly aligned under even the most demanding applications. Helixes adjustable 4-link features extra long 28 inch main bars and 18 inch secondary bars to provide you with the maximum in suspension travel and adjustability. Brass sleeved bushings guarantee a lifetime of squak-free operation. Completely TIG welded for maximum strength. All mounts are cut from 1/4" plate. Special infinitely adjustable CNC machined threaded rod ends are thicker than usual and thread over 2.5 inches into the 4-link tubes for both strength and adjustability. Fully plated Grade 8 mounting hardware included. Stay ahead of the pack with Helix Suspension.