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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 ...
The Square-Body name refers specifically to GM's third-generation C/K trucks built from 1973 to 1987 — not just any old Chevy pickup. A truck that once sat forgotten in a barn for $4,500 now regularly ...
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