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REPAIR FOR COMPONENT PARTS — Final Drive: Viscous Coupling Side (RS5F30A & RS5F31V)

MT-52prose procedure

Page applies primarily to the RS5F31V viscous-coupling variant; step 4 retaining-pin install is common to both RS5F30A and RS5F31V.

Final Drive (Cont'd)

Viscous coupling side

Side gear clearance — viscous coupling side (RS5F31V)

  1. a
    Place side gear and thrust washer on pinion mate gears installed on differential case.
    Two views of viscous-coupling-side dimension X measurement: top view shows height gauge over side gear with side gear thrust washer; bottom view shows cross-section with measurement zones A (block) and X (clearance) between thrust washer and side gear.
    SMT753B
  2. b
    Measure dimension X.
    Measure dimension X in at least four places.
  3. c
    Measure dimension Y.
    Measure dimension Y in at least four places.
    Clearance between side gear and viscous coupling = X + Y - 2A: 0.2 mm (0.008 in) or less
    A: Height of gauge
    Two views of viscous-coupling-side dimension Y measurement: top view shows height gauge probing viscous coupling face; bottom cross-section shows measurement zones A (block) and Y (clearance) above viscous coupling.
    SMT754B
  4. d
    If not within specification, adjust clearance by changing thickness of side gear thrust washer.
  5. 4
    Install retaining pin.
    Make sure that retaining pin is flush with case.
    Special tool KV32101000 (pin punch) being used to drive the retaining pin into the differential case so it is flush with the case.
    SMT621A
Clearance between side gear and viscous coupling (X + Y − 2A)A = height of gauge block
0.2mm (0.008 in) or less
0.75 - 0.80 (0.0295 - 0.0315)
Part number38424 76M10
0.80 - 0.85 (0.0315 - 0.0335)
Part number38424 76M11
0.85 - 0.90 (0.0335 - 0.0354)
Part number38424 76M12
0.90 - 0.95 (0.0354 - 0.0374)
Part number38424 76M13
0.95 - 1.00 (0.0374 - 0.0394)
Part number38424 76M14
1.00 - 1.05 (0.0394 - 0.0413)
Part number38424 76M15
1.05 - 1.10 (0.0413 - 0.0433)
Part number38424 76M16
1.10 - 1.15 (0.0433 - 0.0453)
Part number38424 76M17
1.15 - 1.20 (0.0453 - 0.0472)
Part number38424 76M18
1.20 - 1.25 (0.0472 - 0.0492)
Part number38424 76M19
1.25 - 1.30 (0.0492 - 0.0512)
Part number38424 76M20

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