Amazing that the Chevrolet had auxiliary or helper springs and the Ford did not!
Quote:
Auxiliary springs where used provide reserve capacity for heavier loads...
...Spring shackle studs are provided with lubrication fittings (except front springs of F-8 and F-15 models)....
...Spring shackle studs used on the front springs of F-8 and F-15 models are of the oilless type and require no lubrication.
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: FORD SPECIAL PATTERN VEHICLES INSTRUCTION BOOK