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Driven Gear Shimming Tools

This is MerCruiser p/n 91-60526T. It is used to measure clearance on the driven gear in the upper housing on all MerCruiser #1 drives made from 1968 to 1997 including "R", Alpha One "MR" and ( Generation II drives up to Serial # OK999999 ).

This tool will not fit Bravo, TR or TRS.

This tool is made by GLM.

Click here for preload checking tool

: Order # 0180

This is MerCruiser p/n 91- 854377. It is used to measure clearance on the driven gear in the upper housing on MerCruiser Generation II drives made from 1998 to Date - Serial #OL100040 & above.

This tool will not fit Bravo, TR or TRS.

This tool is made by MerCruiser.

Click here for preload checking tool

: Order # 4377

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Precision Services, Inc.
Shelby Township, Michigan 48316

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Last modified: May 09, 2008