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TCI® offers a variety of low gear replacement planetaries for several of the most popular Ford and GM transmissions. With additional gear reductions in both first and second gear, these gear sets work well in all applications requiring an additional gear for better take-off. From heavy drag cars to off-road 4x4s to tow trucks, a TCI® Low Gear Planetary can improve low end torque without adversely affecting the final drive ratio. Available for several of the most popular Ford & GM transmissions Additional gear reductions in both first & second gear Works well in all applications needing an additional gear for better take-off Can improve low end torque without adversely affecting the final drive ratio