There shouldn't be any difference in ride height between your driver and passenger sides when parked on a level surface. Proper ride height is important on these chassis so you'll have to check it to see how far off spec it is. Fortunately, it's not difficult to adjust ride height. You adjust ride height by removing or adding shims on the suspension system.
You'll need to check your manual to see what the proper ride height is. If I remember right, on my 98, 37' Serengeti it's 31 inches from the middle of the wheel to the bottom of the horizontal trim strip above the storage doors. Ride height effects handling and driveline angles so it's important that it is set correctly.
From the factory, your coach should have about 10 shim in the shim pack. You raise ride height by removing shims. You correct ride height by removing or adding the same number of shims on both the front and rear suspension on each side. The bad new is, if you are out of shims, you are looking at replacing your torsilastic springs or installing air bags.
These chassis were used on a number of coaches so if you do a search on Velvet ride Magnum Chassis you'll get a lot of stuff to read. Contrary to what some people say, replacement torsion springs ARE still available.
Here's a link to the process for measuring ride height: http://pioneermetalworks.com/wp-cont...structions.pdf
Count your shims on each corner and measure your ride height and us know what you find.
Hope this helps
1998 Safari Serengeti 3706
300HP Cat 3126