[Texas TC]

Porpoising is the act of the front end of the coach moving up and down using the rear end as a pivot point. The act of bouncing in the front while the rear stays solid.

"Hard tail" is a term for the original Harley-Davidson motorcycles that had no rear suspension with the exception of springs under the seat. I have adapted that term to the International chassis where there are only high capacity springs with no shocks in the rear so, in essence, there is no suspension at all.

Sorry for the confusion and good luck with you install and generator repair.