Air helper springs: level under load, soft when empty
A truck sprung firmly enough to carry a heavy trailer rides badly the rest of the year. Air helper springs solve that by adding support only when you need it — inflate when loaded, deflate when empty.
They sit alongside the existing springs rather than replacing them, so the truck keeps its rated capacity and gains control of the squat. That fixes headlight aim under load, takes the wallow out of a towed load, and stops the rear bump stops taking the hit. A compressor and a gauge make it adjustable from the cab; without one you are working with a tire pump at the roadside.
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Compressors, lines and minimum pressure
Air springs need a minimum residual pressure even unloaded, or the bag chafes and fails early. Follow the published figure rather than running them flat.
An onboard compressor turns this from a driveway job into a switch on the dash, and a two-path system lets you correct for a load that sits to one side. Route air lines away from exhaust heat and moving suspension. We stock 87 air suspension parts from 1 brand.