Toyota’s 1H Series manual transmissions are known for their strength, but there are some differences between each version. Changes to gear ratios, synchro design, and case strength can significantly affect how a Toyota LandCruiser drives, whether that’s crawling off-road, towing, or cruising on the highway. The table below compares the most common H15x and R15x … Continue reading Gearbox Ratio Calculator for Toyota LandCruiser