Since some are saying that they cannot be run can up I decided to check with the pros:
Ron,
Yes, you can still mount the RS9000 line in the inverted position. They
will still function properly, but might seem slightly softer if this is
done. Both our 5000 series and 9000/9000X series shocks are cellular gas
charged shocks. This means that the gas and the oil are in two different
chambers rather than being mixed together like in free-flowing gas charged.
Since the gas is not in direct contact with the piston, it does not extend
the piston. The cellular gas charged shocks have advantages of both free
flowing gas charged shocks and hydraulic shocks. This is due to the
cellular gas still preventing aeration with the gas charge while also being
able to be mounted in more versatile positions. These shocks are designed
to not extend on its own.
For further questions please feel free to contact the technical assistance
line at 734-384-7804.
Rancho Team-Justin