that the left side spring has settled with age and driver only driving. i suggest switching the rear springs or replacing one or both of them. i cant think of any reason it would be related to the leveling system. i believe it simply boosts both sides in back until the car is level front to back.

btw i am no expert on the system.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.