The steering box area on Jeep Cherokee XJ (1984-2001) and Comanche MJ (1986-1992) is a notorious weak point, prone to failure under the demands of suspension lifts, large tires, and rugged trails. Our Bottom Steering Box Reinforcement Plate strengthens this critical spot, welding on the unibody bottom from the front unibody plate to the factory plate under the track bar mount for added rigidity and protection.

CNC-cut to retain factory sway bar and vent holes, this plate is perfect for combining with our outer stiffeners (XJ, MJ ), Steering box pair, and Behind the Front Bumper Stiffener to create a complete boxed-in enclosure around the steering box. Available in 10-gauge cold rolled steel (for work-hardened strength and smooth finish) or 3/16-inch pickled and oiled steel (thicker with a clean, rust-resistant surface), plus square or round weld holes for your install preference. It's an essential upgrade for rust-prone salty environments or heavy-duty builds. Welding is required, with potential minor grinding for fitment.

Proudly made by T-M Fab, your trusted source for Jeep fabrication that delivers trail-tested reliability.

• Steering Box Area Reinforcement: Welds on the bottom of the unibody below the steering box mount, spanning from the front unibody plate to the factory plate under the track bar mount, to prevent common failures from lifts, oversized tires, and off-road stress.
• Retains Factory Features: CNC-cut to preserve holes for the sway bar and vents, ensuring compatibility without modifications.
• Box-In Compatibility: Combines with outer stiffeners (XJ: https://www.t-mfab.com/store-3/?model_number=xjfus; MJ: https://www.t-mfab.com/store-3/?model_number=mjfus), inner/top plate, and front rail connector to fully box in and protect the steering box area.
• Material Options for Durability: Available in 10-gauge cold rolled steel or 3/16-inch pickled and oiled steel—select based on your needs for strength, thickness, and surface quality.
• Cold Rolled Steel Benefits: Processed at room temperature for work hardening, resulting in higher strength, hardness, and a smoother finish ideal for precision applications and enhanced load-bearing.
• Pickled and Oiled Steel Benefits: Hot-rolled base with acid pickling to remove mill scale (unlike standard A36 steel), plus oil coating for rust prevention—offers a cleaner surface for better welding and painting, with good ductility for forming.
• Weld Hole Customization: Choose square or round weld holes to match your welder's preference for easier, more efficient installation.
• Sold Individually or as Pair: Designed for single-side or dual application—standalone upgrade or part of a full steering box boxing setup.
• Rust Repair Support: Ideal for salted-road regions, aiding in rust patching and prevention while extending your Jeep's overall lifespan.
• T-M Fab Expertise: Engineered for Jeep Cherokee XJ (1984-2001) and Comanche MJ (1986-1992)—minor grinding may be needed; visit t-mfab.com for more upgrades and kits.