General Motors GM-42168 Shim Selection Kit Shop by Category > Lighting>Flood Lights/Lanterns GM-50345 must be used because

GM-50345 must be used because the jam nut is recessed

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General Motors GM-42168 Shim Selection Kit Shop by Category > Lighting>Flood Lights/Lanterns GM-50345 must be used becauseGeneral Motors GM 42168 Shim Selection Kit Kent Moore Tool Number: J 42168 For General Motors. 1997 later Corvette. Proper measurement and set up is crucial for satisfactory operation and long service life of the rear axle. This tool provides the technician with the ability to measure for and select the correct pinion housing and differential side bearing shims to ensure the axle is set up correctly. Proper set up of the rear axle with this tool is