TM10-3930-660-34 Figure C-2 Tandem Gear Pump Drive Gear Installation Tool 1.  Fabricate from steel bar stock, 1-1/8 or 1-1/4 in. dia. X 4-5/8 in. long. 2.  All dimensions shown are in inches. 3.  All external surfaces must be free of scratches and burrs. C-2