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27 10 070 Replacing output flange on rear transfer box (ATC 35L)

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IMPORTANT: After completing repair work, check TRANSMISSION OIL LEVEL  and top up if necessary.
Use only the APPROVED TRANSMISSION OIL .
NOTE:
  • Replace output flange only  together with a new radial shaft seal.
  • Operations for removal of output flange are identical to replacing RADIAL SHAFT SEAL  for output flange.

Installation note: 

Determine and note down dimension A of output flange (old and new).

Fig 1: Checking Output Flange Dimension A
G04745110Courtesy of BMW OF NORTH AMERICA, INC.

Determine and note down dimension B of output flange (old and new).

Fig 2: Checking Output Flange Dimension B
G04745111Courtesy of BMW OF NORTH AMERICA, INC.

Determine old dimension C, thickness of shim.

Fig 3: Identifying Shim Thickness
G04745122Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Calculate thickness of new shim:

  1. Add old dimension A of output flange (previous) and old dimension C of shim

    Then subtract old dimension B from old result A+C

  2. Subtract dimension B from dimension A of output flange (new)
  3. Then subtract result of step  2 from result of step  1.