Mercury MK 10-15a-28, Merc 100-150-200-250 Outboard Lower Unit Trans Shimming Gauge


This is a shimming gauge for the automatic transmission lower unit Mercury Mark 10-15a-28 Merc 100-150-200-250 outboards of the 1960’s. This is the tool you will need to set up the correct clearance on the springs if this unit has some wear in it or if it has been taken apart for service.