Air Ride Technologies also offers the 4 link rear suspension in a parallel style. Very similar in construction to the tri link... rubber bushings, heavy tubing, lasercut bracketry... but the parallel 4 link uses a panhard bar to position the rear axle side to side.In many applications, such as late model trucks, this configuration avoids interference between the upper bars and the oem gas tank. The parallel 4 link is also slightly easier for the casual installer to visualize and install because there are fewer bar mounts to deal with... the frame brackets and axle brackets carry both upper and lower bars. The parallel Air4Link™ is available separately, with airsprings and weld-on bracketry, with bolt-on rear mounted airspring brackets, or with ShockWaves™.

The triangulated AIR4Link™ is designed for the professional builder who wants a straightforward, no compromise rear air ride suspension.The triangulated version Air4Link™ is a tubular version of the tried and true rear suspension that GM has used since 1964. Welding and basic fabrication skills are needed. As a result, the triangulated Air4Link™ is highly adaptable to a variety of custom installations.The triangulated 4 Link can use a CoolRide™ style airspring/bracket/shock arrangement or a rear Shockwave™ as an upgrade option. For the professional shop or advanced installer, the triangulated Air4Link™ is a top choice.