Shim Calculation

Fig 1: Pinion Variance Marking

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By adding the sum of the above readings you will be able to determine the correct shim needed.

Your base line shim will be 2.047 mm, add this to the pinion depth variance/deviation (1). Refer to Fig 1. The variance/deviation marking on the pinion head in 0.01 mm increments. Therefore, for the illustration shown, 0.03 mm (0.0012 in.) would be added to the shim thickness.

Fig 2: Checking Pinion Height Using Dial Indicator

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Add your dial indicator reading measurement for pinion height (1). Refer to Fig 2.

Fig 3: Measure Gage Rod Protrusion

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Add your gage rod protrusion measurement (1). Refer to Fig 3.

Fig 4: Pinion Depth Shim

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The sum of the above will be the shim size needed (1). Refer to Fig 4.