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Home >> Cadillac >> 2005 >> STS 3.6 7 >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 5L40-E/5L50-E - (Overhaul) >> Repair Instructions >> Draining Transmission Fluid

Draining Transmission Fluid

    Fig 1: Locating Fluid Pan Drain Plug & Seal
    GM816705Courtesy of GENERAL MOTORS CORP.
  1. Remove the fluid pan drain plug (63) and seal (64), and allow the transmission fluid to drain.
  2. Fig 2: View Of Prop Shaft Flange & Components
    GM801790Courtesy of GENERAL MOTORS CORP.
  3. Put transmission in park.
  4. IMPORTANT: Discard retainer (30), seal (32), washer (33) and nut (34).
  5. Remove the prop shaft flange nut (34).
  6. Remove the prop shaft flange washer (33) and seal (32).
  7. Remove the prop shaft flange (31) and the output shaft assembly retainer (30).
  8. Slowly rotate the transmission to a vertical position, with the bell housing facing up, and allow any excess fluid to drain.