4.30 Ratio Ring and Pinion Set, 29 Spline

The Zumbrota Drivetrain differential ring and pinion set, part number YG TLCF-430RK, is engineered for high performance and durability in demanding driving conditions. This set is designed for the front axle of Toyota Land Cruiser models from 1991 to 1997, featuring a reverse rotation high pinion design. With a 4.30 gear ratio, 10 ring gear bolts, and 29 spline count, this set is intended to restore acceleration lost due to larger tires or improve performance for towing, off-roading, and racing. It is built from high-grade steel with a focus on quiet operation and longevity, utilizing state-of-the-art design and manufacturing processes. The kit includes a 29 spline conversion yoke and necessary small parts. Important fitment notes include that this set fits earlier applications with a stock 27 spline but does not fit the clamshell design. Proper installation requires specialized tools such as a hydraulic press and dial indicator, and it is recommended to use a master overhaul kit, which includes new bearings, seals, shims, and a pinion crush sleeve.