However, the average sale price of $21.925 keeps them squarely in the practical arena. In the final year of the official square body truck run, we include the 1987 Scottsdale to show that the ...

Today, average retail is estimated at nearly $27K, and the most recent 1973 GMC Sierra Grande sale recorded by Classic.com went for $31,000. The first GMC square-body truck grilles featured three ...