System for maintaining clutch pedal height after clutch resurfacing

In a internal combustion engine transmission system having an engine crankshaft, clutch, a metal flywheel connecting the engine to a drive gear box, a coupling arbor having a planar face and a complementary planar face on said flywheel, and a plurality of bolts securing said flywheel to said arbor with said planar faces abutting each other, said flywheel having a metal clutch surface which has been resurfaced by machining to remove metal from said clutch surface and extend the life of said flywheel, shim means for establishing substantially the same position of said clutch surface after machining as when the clutch surface was new, said shim means comprising a planar annular plate having a pair of parallel surfaces spaced apart by the thickness (T) of the planar annular plate member, said thickness (T) being substantially the amount of metal removed during the machining of said surface, said annular plate member having a plurality of bolt holes, one for each of said bolts to pass therethrough, respectively, one of said pair of parallel surfaces being adapted to abut said planar face on said arbor and the other of said parallel surfaces being adapted to abut said complementary planar face on said flywheel, the improvement wherein said annular plate has an inner aperture, a plurality of breakaway tabs on said inner aperture which are adapted to be broken away to accommodate larger diameter crankshaft hubs.