Classic Truck Body Builds Guide: Broncos, K5 Blazers, GMC Jimmys & 1967–1972 GM Trucks

Classic trucks from the late 1960s and early 1970s represent the most restored, modified, and searched-for vehicles in the classic truck market today. From early Broncos to K5 Blazers and 1967–1972 GM pickups, these trucks combine iconic styling with unmatched build versatility.

At Rust Belt Offroad, we manufacture premium reproduction truck bodies used by top builders and restoration shops across the United States. This guide breaks down today’s most popular classic truck body builds, explains critical differences between GM truck models, and helps you choose the right foundation for your project.

Restoring a 1966–1977 Ford Bronco? Understand the difference between the glove box warranty tag and the true VIN stamped on the frame

Decode your 1967–1972 Chevy C10/K10 VIN number with our simple guide. Identify model, engine, year, and plant with Rust Belt Offroad experts.

Decode your Classic Bronco’s history — one number at a time.

If you’ve ever wondered how to tell the difference between a 1967 and 1987 Chevy or GMC C/K truck, you’re not alone. These classic pickups—spanning two decades of American design evolution—are among the most beloved and collectible trucks ever built. Whether you’re restoring a C10, K10, C20, or K20, or sourcing reproduction parts from Rust Belt Offroad, knowing what makes each generation unique can save you time, money, and frustration.

When it comes to restoring or customizing a classic truck, the paint finish can make or break the build. It’s not just about color — it’s about depth, durability, and authenticity. At Rust Belt Offroad, we offer professional automotive paint services...

Precision, Protection, and Showroom Finish for Every Classic Truck Body At Rust Belt Offroad, we believe that a great restoration doesn’t stop at perfect welds and flawless fitment — it deserves a premium paint finish that brings your build to...

When it comes to breathing new life into a classic K5 Blazer or C10 truck, few upgrades compare to an LS engine swap. The LS platform has become the gold standard for power, reliability, and performance in the restomod world. Whether you’re working on a 1969–1972 K5 Blazer or GMC Jimmy, a 1967–1972 C/K Series C10, or a 1973–1987 C10 Square Body, an LS conversion transforms your classic GM truck into a modern-driving powerhouse — without sacrificing vintage style.

When it comes to restoring or rebuilding a classic Chevy or GMC truck, the firewall is more than just a piece of sheet metal — it’s the backbone of your cab’s structure, alignment, and authenticity. Whether you’re working on a...