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M/T Shift Forks Clearance Inspection

NOTE: The synchro sleeve and synchro hub should be replaced as a set.
  1. Measure the clearance between each shift fork (A) and its matching synchro sleeve (B). If the clearance exceeds the service limit, go to Step 2 .
    Standard:
    0.35−0.65 mm (0.014−0.026 in.)
    Service Limit:
    1.0 mm (0.04 in.)


  1. Measure the thickness of the shift fork (A) fingers.
    • If the thickness of the shift fork finger is not within the standard, replace the shift fork with a new one.
    • If the thickness of the shift fork finger is within the standard, replace the synchro sleeve with a new one.
    Standard:
    1st/2nd, 3rd/4th shift forks:
    7.4−7.6 mm (0.29−0.30 in.)
    5th shift fork:
    6.7−6.9 mm (0.26−0.27 in.)


  1. Measure the clearance between the shift forks (A) and the shift arm (B). If the clearance exceeds the service limit, go to Step 4 .
    Standard:
    0.2−0.5 mm (0.008−0.020 in.)
    Service Limit:
    0.62 mm (0.024 in.)


  1. Measure the width of the shift arm (A).
    • If the width of the shift arm is not within the standard, replace the shift arm with a new one.
    • If the width of the shift arm is within the standard, replace the shift fork or shift piece with a new one.
    Standard:
    12.9−13.0 mm (0.508−0.512 in.)