Shim Calculation

WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

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). See Fig 1. The variance/deviation marking on the pinion head in 0.01 mm increments. Therefore, for the graphic 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). See Fig 2.

Fig 3: Measuring Gage Rod Protrusion

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

Fig 4: Pinion Depth Shim

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