Drive Pinion
Height AdjustmentNOTE: If the drive pinion and ring gear are replaced (always as a set), the height has to be adjusted.
Select the proper shim as follows:
First, calculate the difference in size between the old shim and the new pinion.
The last number (see illustration) on each pinion is the plus (+) or minus (-) tolerance in thousands of a millimeter. So, a pinion with +20 is 0.02 mm larger and a pinion with -20 is 0.02 mm smaller.
1. If the number on the old pinion is a plus (+), add it to the old shim thickness. If it is a minus (-) subtract it from the old shim thickness.
2. If the number on the new pinion is a plus (+), subtract it from the number you got in step 1. If it is a minus H, add it to the step 1 number.
3. Select the shim that is closest (but not more than) the final number you got from steps 1 and 2.
43 mm THRUST SHIM