Pump it up!
All in all great produce. Did take longer to install do to fit , lower bracket was getting hung up do to the leaf spring and the abs junction on the driver side. First drive, had a problem with the lower bolt fasteners retracting from the bottom of the billow . Called airlift and they sent two new ones within two day. So far so good now.
Second one I've purchased. First truck was a 2008 Silverado. Mounted the compressor in the cab and it still worked great after 6 years. I installed a new one in a 2015 ram and mounted it under the bed rail. Look forward to seeing how long this last. Seems like decent quality for consumers. Adding air is easy!! Push connection on the air hose pretty much seems like magic.