Sumo Gear designs and manufactures premium reduction and low‑range gear sets for Toyota and Suzuki 4WDs, built to dramatically improve crawl ratio, control, and torque delivery off‑road. Developed from over 25 years of drivetrain experience, Sumo Gear products are manufactured in Japan by OEM suppliers, using advanced machining and proven gear designs for strength, precision, and reliability. Their reduction gears are trusted worldwide to handle oversized tyres, technical terrain, and demanding off‑road use without compromising durability.