Description
Suzuki Jimny JB64 / JB74 Transfer Case Reduction Gears – SUMO GEAR (Made in Japan)
*Gen4 Only
Upgrade your Suzuki Jimny JB64 or JB74 with high-performance transfer case reduction gears engineered for serious off-road control and reliability.
Manufactured in Japan by Sumo Gear, a leading OEM gear manufacturer, these precision-machined billet gears are built to handle extreme conditions while maintaining smooth, quiet operation both on and off-road.
Key Features
Precision Engineering: Each gear is CNC-machined from high-quality billet material in Japan using advanced tooling for maximum durability and consistent performance.
Improved Drivability: Enhanced crawl control and torque delivery for challenging off-road terrains, steep climbs, and technical trails.
OEM-Level Quality: Manufactured by an official O.E. gear supplier ensuring perfect fitment and long-term reliability.
Gear Ratio Changes
- High Range: 1.0:1 → 1.17:1 (≈ 17% reduction)
- Low Range: 2.0:1 → 4.17:1 (≈ 108% reduction)
- These ratios offer the ideal balance between on-road usability and off-road power, making them perfect for lifted Jimnys running 30”–31” tyres.
Compatibility
- Vehicle Models: Suzuki Jimny JB64 / JB74 (2018 onwards)
- Transmission: Manual 5-speed gearbox with manual transfer case
Origin
- Made in Japan
- Manufacturer: SUMO GEAR – O.E. gear specialist
Why Upgrade?
Installing Sumo reduction gears dramatically improves low-range torque, hill-climbing ability, and control on technical terrain while reducing clutch strain. Whether you’re rock-crawling, overlanding, or daily-driving your Jimny, this is one of the best upgrades for true off-road performance.
