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COMET
- Automatic Transmission
  - 6 Cyl, 200 cid
  - 8 Cyl, 289 cid
  - 8 Cyl, 390 cid
    - 2-barrel carburetor
    - 4-barrel carburetor
- Manual Transmission
  - 3 speed
  - 4 speed
    - 8 Cyl, 289 cid
    - 8 Cyl, 390 cid
      - 2.32 low gear (GT)
      - 2.78 low gear (GT)
MERCURY
- Automatic Transmission
  - 8 Cyl, 390 cid
  - 8 Cyl, 410 cid
    - dual exhaust
    - single exhaust
  - 8 Cyl, 428 cid
- Manual Transmission
  - 3 speed
  - 4 speed

Transmission Assembly for 1966 Mercury Comet

Fits: COMET Manual Transmission 4 speed 8 Cyl, 390 cid 2.78 low gear GT (change)

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