[prairieschooner]

I set the old Linkage assembly on a piece of cardboard and traced the angle on full extension to see what was needed and it wasn't very much so I got out the angle grinder and made a slight modification. Here is what the new linkage arm looked like before installing:
       

Well the valve was not the entire problem, the rear air bag on the drivers side is bad;
   

That area was harder to get to until I raised the coach and blocked it up. Not sure what the cause was but the bags will be scheduled for replacement. Problem is that I still don't know what mine are so I will need to remove at least one to try and get some identifying info.
Looks like there is a single nut on the bottom, at least an air fitting on the top and sure a nut or two on the top. I didn't have the tools needed on the coach so I'll take a day off today (need to stack a cord of wood that was delivered yesterday) and get back down to remove the problem bag for identification.
       


Any advice to the best supplier for these Firestone Air Springs?