Thanks Joel. I need an outfit that has the capacity to get under the coach. I'm specifically looking for someone to diagnose a "clunk" that I sometimes get at low speed stop and go when I accel or decel. It doesn't happen all the time, but often enough to be worrisome, like something is in the process of becoming looser and needs to be corrected. It could be a worn bushing, some unexpected slack in the driveline due to wear, or just an antisway bar that needs to be tightened up.
Your average RV service center can work on a balky propane system, but I'm not trusting them with something that could cause a stranding.
Engine/Trans guys I can find, Coach systems I can find, but who do you trust with the Big Truck portion of your coach? Brakes, Hydraulics, Driveline. :-/