There are nasty rusty ones running around here that aren't worth repairing, ... that seem to be fine. If it were just exposure to salt / corrosion they would likely be gone. I've also seen rusty ones in the boneyards that have the spring perches intact. My friend's nice southern no-salt car did have a failure, inconsistent with the rust theory, thus my doubt.

__________________

Gone to the dark side

- Jeff