GM Genuine Parts Automatic Transmission Planetary Gearset Ring Gears are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These ring gears serve as the outermost gear in a planetary gearset and engages with planetary gears. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

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• Intended to generate wide range or input and output in an automatic transmission
• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies