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18'-UP GM 3500/4500 (Cutaway Vans) Rear ASAM Air Spring Kit (SQ4003000)
18'-UP GM 3500/4500 (Cutaway Vans) Rear ASAM Air Spring Kit (SQ4003000)
100% bolt-in mounting system designed for all 18’-UP cutaway van bodies with aftermarket boxes or beds such as HVAC, Plumbing, Electrical and many other trades. This kit will most likely fit older models, but 18’ was the oldest we had to work with. Please contact us for assistance on older models.
GM has two axle diameters, 3.5” and 4” that can be used on any version of the van. Some upfitters may have installed a sway bar. We need to know those details to ship the correct kit to you. Please tell us in the “Additional Comments” section while ordering, the axle diameter and if a sway bar is present. Please contact us with any questions.
The kit is manufactured from 304 stainless steel and features 6,000 lbs. combined air springs. Kit arrives with two air springs, mounts, fasteners, composite DOT push-to-connect air fittings and a single air fill line that tee’s off to each spring ready to fill with your compressor. We do offer small wireless control air systems if that is desired.