Trucks have changed a lot in the last few decades. These days, pickups have become more luxurious and technologically-advanced than ever before, with in-dash navigation screens, surround sound, leather upholstery, twin-turbocharging, direct injection, and flashy 20-inch wheels. However, not long ago, there was a time when trucks fit a much simpler formula: a big carbureted V8, high ground clearance, a utilitarian aesthetic, and near-indestructible reliability. This '77 GMC long-bed reminds us of the time when trucks were simple, and built to work hard.