Blazin’ Biddles Drivetrain Packages for 1981-1987 Squarebody Chevy & GMC

At Blazin’ Biddles Off-Road, we don’t just sell drivetrain parts—we run them. Every drivetrain package in this collection is hand-selected, tested, and proven on real Squarebody builds. Designed for 1981–1987 Chevy/GMC pickups and 1981–1987 K5 Blazers, Suburbans, and Jimmys, these kits give you everything you need for strength, control, and long-term reliability.

Each package combines trusted brands and real-world setups that work together with no guesswork, no mismatched parts, and no junk. We’ve already figured out what fits, what lasts, and what makes your truck perform.

Whether you’re rock crawling, towing, or building a trail beast from the ground up, our drivetrain packages deliver proven performance, reliability, and value.

👉 Built by Squarebody owners—for Squarebody owners.