How many ride height control valves do I have
I have a 2007 MADP with a tag axle and I'm looking for an air leak, I don't have the safety equipment to crawl under the motorhome so I'm just spraying the valves I can see with soapy water, I've found a ride height valve at each of the front tires (one is leaking) and so far have only found one ride height valve on the rear, I suspect I have at least 2 and as many as 4 but I'm not sure. Any ideas of how many valves I should have on the rear.
Sonny, Anita and Phoebe
2005 MADP 4304, 2005 Ford Crew Cab F150 toad, 2009 Harley Ultra Classic