Ugh what a weekend. Tried to install my 4" lift on sat. Couldn't because I couldn't get the track bar off since I don't have the tool and no one in Norfolk has a metric that large. 32 I believe. So then I went on to install my snow inj kit. Get it all secured and start the wiring. The boost hose they supply is WAY too small. I don't have a drill bit big enough to mount the switch. Man I was getting agrivated. Looked at the airdog and didn't even attempt it. Thank goodness for beer!! Sorry needed to rant for a bit.