General Motors GM-50345 Valve Clearance Adjust Nut Wrench Shop by Category > Diagnostics>Circuit Testers/Test Leads 8L Duramax Crankshaft Sprocket Locking

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General Motors GM-50345 Valve Clearance Adjust Nut Wrench Shop by Category > Diagnostics>Circuit Testers/Test Leads 8L Duramax Crankshaft Sprocket LockingGeneral Motors GM 50345 Valve Clearance Adjust Nut Wrench Kent Moore Tool Number: EN 50345 (Discontinued) GM 50345 is used to drive or hold the jam nut on the valve clearance adjuster, while allowing a separate wrench to pass through GM 50345 to adjust the valve clearance. GM 50345 must be used because the jam nut is recessed, and will not allow conventional wrenches to reach it. For the General Motors Tools Catalog, click here Looking for General