BTF Fabrication Uniball Upper Arms for Tacoma (2024+) & 4Runner (2025+)

Improve suspension geometry and front-end performance on lifted builds with BTF Fabrication Upper Control Arms. Designed for strength, articulation, and proper alignment correction, these arms are engineered to support trucks running 2 to 3 inch lift setups while enhancing durability in demanding off-road conditions.

Important notes

• Lead time: Parts are made to order and require confirming approximate lead time before ordering
• Sales policy: All sales are final once the order is placed
• Lift compatibility: Designed for trucks running approximately 2 to 3 inches of suspension lift
• Alignment: Expect about 5 degrees of caster with centered cams and nearly 6 degrees at maximum caster adjustment

Features

• Construction: Made from 1.25 inch x .120 wall 4130 chromoly tubing for maximum strength and durability
• Articulation: FK 1.25 inch uniballs replace traditional ball joints for improved suspension movement
• Bushings: Polyurethane bushings reduce bind and improve suspension response
• Serviceability: Integrated grease fittings support long-term maintenance
• Finish: Powder coated gunmetal grey for corrosion resistance and clean appearance

Specifications

• Tube size: 1.25 inch diameter
• Wall thickness: .120 inch
• Uniball size: 1.25 inch FK uniballs
• Caster gain: Approximately 5 to 6 degrees depending on alignment settings
• Material: 4130 chromoly

Included in the box

• Arms: Pair of BTF Fabrication upper control arms