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Planetary Gears

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This one really shocked us. It turns out the stock planetary gears are made from aluminum. We are amazed we got almost 180,000 miles on the transmission without killing them. Shown here are the replacement ATS steel gears. ATS also changes the rear planetary from a three-pinion to a four-pinion unit and the front one from a four-planetary to a five-planetary unit for added strength.

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