Together with a Ford truck called Bigfoot, the Chevy pickup called USA-1 helped start America's craze for monster trucks. But ...
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The square body truck market has made a 1977 GMC Sierra Grande worth $21,500—here's why that number makes sense
Square Body trucks have crossed into collector territory. Here's why a 1977 GMC Sierra Grande 2500 asking $21,500 makes sense ...
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