2022 Toyota 4Runner Re-Gear & E-Locker Install: 4.56 Gears for Towing and Larger Tires By Cross Edge Fabrication | Precision Differential Setup | Revolution Gears + Eaton E-Locker When building a capable Toyota 4Runner that can tow with confidence and handle oversized tires, re-gearing your differentials is one of the most impactful upgrades you can make. At Cross Edge Fabrication, we recently completed a full differential re-gear and Eaton E-Locker install on a 2022 Toyota 4Runner—tailored specifically for a customer