In order to do 80+ with a 55 GMC it would have to have an overdrive.Around here many NEW 50's era trucks were equipped with an after market three range Watson box(military surplus)to slow them down for loading in the fields.The top speed stayed the same in high range.
Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
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