I've been installing my new "Champion" radiator this week plus some other little piddely jobs under my '49 . While hooking up the tranny cooler lines I noticed why the cab has been leaning towards the passinger side - the coil spring on the Mustange II suspention is broken and judging by the rust on the joint it has been that way for a while ! I can't believe I never seen this until now . I've been wracking my brain trying to figure out why there was at least 1" sag on that side . I have the Eaton Spring website saved on my computer , anyone have any suggestions on which Rates work best for ride quality?