"GAGE,END PLAY;4.75 IN. LG BY 1.75 IN. DIA.;0.75 LBS;MATL STEEL;C/O DIAL INDICATOR AND CYLINDER MOCK UP;DIAL INDICATOR HAS 1 IN. RANGE AND ACCURACY OF 0.001 IN.;CYLINDER MOCK UP USED TO PROPERLY ALIGN PISTON AND SHOE ASSY;CYLINDER SLOTTED ON TWO SIDES TO PERMIT UP/DOWN MOVEMENT OF PISTON TO DETERMINE END PLAY;FOR ACCURATE MEASURE OF EXCESSIVE PISTON TO SHOE SUBASSEMBLIES END PLAY"