Forum Discussion
DrewE
Sep 19, 2018Explorer II
Put some air in them and see how things look and behave.  The basic goal is to have the suspension at the "correct" ride height (basically the unloaded or lightly loaded ride height).  Of course, since you have no chance to see a motorhome chassis in an unloaded state as the load is permanently attached, this is somewhat of a guessing game.  You can get some idea of how its going by watching the ride height change as you put air in or let air out.  (They don't need much air volume.)
I find somewhere around 35-45 psi seems about right for my class C. Too little air and the back end tends to wallow around a lot. Too much air and it's too harsh. You won't damage anything so long as you stay within the pressure range that Firestone specifies--the unmodified suspension is capable of carrying the full rated weight.
I find somewhere around 35-45 psi seems about right for my class C. Too little air and the back end tends to wallow around a lot. Too much air and it's too harsh. You won't damage anything so long as you stay within the pressure range that Firestone specifies--the unmodified suspension is capable of carrying the full rated weight.
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