The Jeep Comanche MJ (1986-1992) is a rugged classic, but its factory unibody may not hold up to contemporary mods like lifts and hefty tires, resulting in flex, cracks, and wear. Our Rear Bed Unibody Stiffeners tackle this by bolstering the outer and bottom rails from the bed center to the unibody rear, ensuring solid support and prolonged performance in tough scenarios.

Available in 10-gauge cold rolled steel (for boosted strength through work hardening and a fine finish) or 3/16-inch pickled and oiled steel (thicker, with a scale-free surface for superior welding and corrosion resistance), these stiffeners are CNC-cut to maintain factory vents and bolt holes. Pick square or round weld holes to align with your install approach. With options for long or short beds, they're sold in pairs for thorough driver and passenger protection—as the final pair in our 4-pair basic kit. They're excellent for specific enhancements or rust combat in salty areas. Welding is required, and certain models might need slight grinding for fit.

Proudly manufactured by T-M Fab, your authority in Jeep fabrication for lasting, adventure-ready builds.

• Rear Bed Section Reinforcement: Welds on the outside and bottom of the unibody rails from the bed center to the rear, offering added strength to manage lifts, oversized tires, and off-road rigors that go beyond factory specs.
• Bed Length Options: Tailored for long or short bed models to guarantee a precise match for your Jeep Comanche MJ configuration.
• Precision Design: CNC-cut to retain factory vents and bolt holes, allowing for smooth integration without extra alterations.
• Material Options for Durability: Select 10-gauge cold rolled steel or 3/16-inch pickled and oiled steel—customized for your demands in strength, thickness, and weld quality.
• Cold Rolled Steel Benefits: Processed at room temperature for work hardening, providing greater strength, hardness, and a smoother finish ideal for high-stress precision applications.
• Pickled and Oiled Steel Benefits: Hot-rolled with acid pickling to strip away mill scale (better than standard A36), plus oil for rust prevention—delivers a cleaner surface for improved welding, painting, and formability.
• Weld Hole Customization: Choose square or round weld holes to fit your welder's preference for quicker, more reliable installation.
• Sold in Pairs: Provides stiffeners for both passenger and driver sides—pair 4 of 4 in our basic kit, suitable as an individual upgrade or completing a full reinforcement system.
• Rust Repair Support: Perfect for salted-road locales, supporting rust fixes and prevention to enhance your Comanche's durability.
• T-M Fab Expertise: Crafted for Jeep Comanche MJ (1986-1992)—welding essential, with possible minor grinding; browse t-mfab.com for additional MJ components and kits.