1992 Ford Ranger driven on the freeway with the parking brake still on! What damage was done?

1992 Ford Ranger driven on the freeway with the parking brake still on! What damage was done?

Added (1). Son got it for Christmas and new to driving. What kind of work would a car mechanic need to repair the damage? There was smoke coming from the rear wheel well.

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Guessing that the parking brake for that truck operates the rear drum brakes by a cable, and nothing else.

Depending on how much driving your son did that way… Worst case, new rear brake shoes, and drums. (But the drums are probably OK: they're really tough to hurt.)

Best case: he shortened the life of the rear brakes, but didn't do anything that really needs to be fixed right away.

You could get a mechanic to inspect the rear brakes. Or test it for braking performance yourself, if you're familiar with how that vehicle handled before. Pickup trucks especially get very little braking from the rear wheels, under the best of circumstances.

You probably wore it out

INSPECT the brakes when the brakes are COLD. Anything else is just GUESSING.