The whole air vs spring interests me as well. After driving many MDTs, the best ride was an all spring Freightliner. That didn't make sense to me. I was told by truck mechanics that the long springs made the difference. That part made sense. What I still don't understand is the International with rear air ride shook my teeth lose? When I was traveling on converted buses, they might sway a little but they would ride much smoother. Hard bumps would be smoothed out to a slow bounce. Do the class 8 trucks react this way?
We need a long timer to answer all these questions.
Doc Weaver
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Doc Weaver '98 Freightliner FL60 pseudo toy hauler
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