I believe they were mostly used on big bolts with vacuum operated 2-speed axles. But, yes, they can be used on pickups or cars. I found one on a 235 that was going to go in a 1937 pickup. There happened to be a spare in the seat of the "project" truck. Should have snagged that one as well.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.