Frame Werx – Custom IFS Chassis for Classic 4X4 Chevys

Each Frame-Werx chassis is engineered for strength, drivability, and off-road performance, while maintaining the correct body mounting points and proportions of the original factory design. Whether you’re looking to enhance ride quality, increase capability, or lay the groundwork for a full custom build, Frame-Werx delivers a rock-solid foundation for your project.

A modern 4×4 IFS chassis under a classic Chevy

Frame-Werx replaces the leaf-sprung factory frame beneath a 1967–1987 Chevrolet K10 pickup, 1969–1991 K5 Blazer or 1970–1991 GMC Jimmy with an independent front suspension chassis built around proven late-model GM hardware. The suspension, steering, brakes and differentials are drawn from the GMT900 platform that underpins the 2010 Cadillac Escalade, so replacement parts are easy to source for decades to come. Out back, a multi-link rear suspension keeps the axle planted and the ride composed. The chassis is rated to 800 horsepower and is ready for all-wheel drive.

Hot-dip galvanized for the life of the truck

Once fabrication is complete, every Frame-Werx frame is hot-dip galvanized. The whole structure is submerged in molten zinc, which bonds to the steel inside every rail and crossmember, not just on the surfaces a spray gun can reach. It is the same rust protection trusted on bridges and highway guardrail, and it means the foundation of your build will not quietly rot away beneath a fresh coat of paint.

Fitment

• 1967–1972 Chevrolet K10 pickups and 1969–1972 K5 Blazers
• 1973–1987 Chevrolet K10 pickups, 1973–1991 K5 Blazers and GMC Jimmys and Suburbans

Spec yours

Choose shocks, brakes, drivetrain, axle ratio and finish in the Frame-Werx chassis builder and watch the total update as you go. Frame-Werx chassis are designed and built in-house and sold exclusively through K5 Squared.