So here's what happened. The roll pin sheared in half while we were driving. It's only a 1.25" x .25" little bar of steel that holds the jack up. My husband replaced it for 55 cents. That seems crazy to me. Anyway, the HJ tech told us its very rare for a jack to fail while driving. I guess that makes us special. :) we never over extend or over retract the jacks so it must have been the previous owners or a faulty pin in first place. We r thinking about replacing the other three pins, but the HJ tech said he didn't think it was necessary. Don't know if I agree! I have a photo of the broken part but can't figure out how to post it.
