Toyota FJ Cruiser Final Drive Gear Set - Front - Yukon Gear & Axle - High Performance 4.88 Ratio Thick - `03-`23. This front ring and pinion set from Yukon is engineered for drivers upgrading power or tire size who need a durable, OEM-compatible 4.88 final drive for Toyota clamshell front differentials.

Built with high-grade steel and advanced heat-treating, this Yukon high-performance gear set delivers a precision tooth surface finish designed to reduce friction and heat under sustained torque. The “thick” configuration fits 3.73 and down carriers (including many aftermarket 3-series lockers) and is intended for 8.00" Toyota clamshell front housings. Yukon’s manufacturing and in-house testing processes provide predictable fitment and long-term durability for street, trail, or light competition use. This set also comes with Yukon’s standard one-year warranty and access to the Y.E.S. Plan for extended protection options.

Features

• 4.88 final drive ratio — improves low-end pulling and matches larger tire setups
• Thick ring design — fits 3.73 & down carriers or compatible aftermarket lockers
• Designed for 8.00" Toyota clamshell front differentials
• High-grade steel and advanced heat treatment for strength and wear resistance
• Precision tooth finish for reduced friction and improved heat control
• Includes standard Yukon one-year warranty; Y.E.S. Plan available

If you have questions or want help confirming fitment, call us directly — we’re happy to assist. We have two installation and customization shops: Austin, Texas and Los Angeles, California area, and we install on premises at both locations. Call us at 512-982-9393 (TX) or 562-981-6800 (CA). Considering multiple items? Contact us for shipping discounts before ordering. We install on premises at both locations.

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