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At Blazin’ Biddles Off-Road, we don’t just sell parts—we run them. Every drivetrain package in this collection is hand-selected by us using the best, most proven components available for 1973–1987 Squarebody Chevy/GMC pickups, as well as 1981–1991 K5 Blazers, Suburbans, and Jimmys.
These kits combine trusted brands and real-world-tested setups that are known to work together—no guesswork, no junk, and no mismatched parts.
We’ve taken the time to figure out what works, what doesn’t, and what actually fits your Squarebody. Whether you’re crawling rocks, hauling gear, or building a trail beast from the ground up, these drivetrain packages are built for strength, control, and long-term reliability.
Built by Squarebody owners—for Squarebody owners.