I noticed that the rear end of the GMC was sitting pretty low. I attempted to air it up, but discovered a broken air line on the passenger side. The line had broken off right at the fitting. So, I ended up airing that side up with a portable air compressor (I have a cut-off valve and schrader valve at the inlet to the airspring), which gave me the room to get in there and fix the broken air line with a new fitting. Easy peasy. Nothing worse than when your rear end is hanging low. Am I right?
So, what did you do to your GMC today?
So, what did you do to your GMC today?





