hone eagle wrote:
christopherglenn wrote:
I have the trailair / triglide.  With a 4000+ lb pin weight (empty toyhauler) I can see the trailer move up and down on train tracks, speed bumps, or California freeways.  Whoever thinks Air pin boxes are a waste of money or ineffective on a heavy trailer is misinformed.
I said it and stand by my statement "at 80-90 psi they are essentially solid rubber".
kick your tires ,are they at 80psi?
dont hurt your toe
Comparing apples and oranges.  An 80 psig tire does give when loaded with an appropriate load.  To your toe, it is hard, but if you hit it with several hundred pounds, it does give.
A single air bag on an air ride pin box will have to be aired to a higher pressure than two larger bags on a an air ride hitch like a TS3.  I run my TS3 at about 65 too 70 psig and slightly above the index mark as the trailer ides better there.
Ken