I am looking at a 300 hp 93 36' Can anyone give an estimate for a set of tires.
Do the air bags for the suspension need replacing and if so how much including labor.

Thanks
Wayne

My two cents - you should plan on around $400 each for tires, you could probably find them for less, but could also pay around $500 each depending on what brand you want. There are many different opinions about air bags, but they all hold air now without leaking, I wouldn't think you would need to replace them. I believe they are in the $700 range plus install. Good Luck on the purchase! Tom

According to Gillig (the chassis on my coach) the suspension bags only get replaced if they somehow leak. That is a very rare happening, so if they inflate and hold their levels when traveling forget about them. There are many instances of bags deflating when parked or when sitting for a while - this is usually the lines or valves that lead from the tanks to the bags and not the bags themselves. Gillig NEVER used junctions or "T's" in air lines so the only points of connection are at the tank and the bag, nothing in between. The dryer is between the compressor and the tank. If it does not hold the suspension when the engine is off have the lines checked. Many others here have discussed how to trace a leak.
Good luck!

"There are many instances of bags deflating when parked or when sitting for a while"...

When I had a leak in one of the leveling valves my bags would deflate from 110 to zero in about 6 hours; since I had it fixed pressure goes all the way down overnight (14 hours?); when new it did the same. When the bags are all the way down it is sitting on hard suspension, and it hasn't seemed top hurt it. MY fear: On jacks, bags empty, raising the jacks and dropping with a hard jolt and ruining something - perhaps the bags. DON'T RAISE YOUR JACKS WITH EMPTY BAGS!

My coach has the HWH leveling system. I have the instruction manual which confirms what Gunner says. If you dumped air to lower coach onto the jacks you should start the engine, let the pressure build (switch off the dump switch) and the coach will elevate. Then when the coach has leveled out you can retract the jacks and be on your way. HWH has the book online if you don't have one.