[rotorwrench]

The girl appears to be hand cranking on a jack. Ford used the flipper top jacks that had to be placed under the axle and hand cranked to lift the corner of a light pickup. The ones Ford used for cars were crap and a lot of them were tossed when they failed to function properly. Folks would use what ever jack that they could find cheap that actually worked. Those early bumper jacks were dangerous.