550 - BULLDOZER TURBINE, GEARS, SHAFT 0651 Parts group TURBINE, GEARS, SHAFT 0651 TURBINE, GEARS, SHAFT 0651 . CONVERTER DRIVE SPIDER GEAR [01H20] CONVERTER, IMPELLER WHEEL AND HOUSING [01H21] CONVERTER OUTPUT SHAFT [01H22] CONVERTER GEARS AND SHAFTS [01H23]