2004 Isuzu Axiom Base, RWDFACTORY OEM SERVICE PROCEDURE

OD Support Assembly: Disassembly

  1. Check OD brake piston movement.

    Place the OD support assembly onto the direct clutch assembly.

    Fig 1: Placing OD Support Assembly Onto Direct Clutch Assembly
    G02789297Courtesy of ISUZU MOTOR CO.

    Apply compressed air into the oil passage as shown in Fig 2, and be sure that the OD brake piston moves smoothly.

    Fig 2: Applying Compressed Air Into Oil Passage
    G02789298Courtesy of ISUZU MOTOR CO.
  2. Remove the thrust bearing.
  3. Remove the race.
  4. Remove the thrust washer (plastic).
  5. Place special tool on the spring retainer, and compress the return spring with a shop press.

    Spring compressor:Β  J-37233

    Remove the snap ring with a screwdriver.

    Fig 3: Removing Snap Ring With Screwdriver
    G02789299Courtesy of ISUZU MOTOR CO.
  6. Remove the piston return spring.
  7. Place the OD support onto the direct clutch assembly.

    Hold the OD brake piston so it is not slanted and apply compressed air into the passage to remove the OD brake piston.

    Remove the OD brake piston.

    Fig 4: Applying Compressed Air Into Passage
    G02789300Courtesy of ISUZU MOTOR CO.
  8. Remove the O-ring and oil seal rings from OD support.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.