1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 487Get this manual
DF4050 "K5" ('05) MODEL
DRIVESHAFTDRIVESHAFT BEARING HOUSING
Effective Engine Number DF40: From 04001F-510001 to 04001F-510209 DF50: From 05001F-510001 to 05001F-510465 The driveshaft and related parts have been changed as follows: The pre-load spring, spring pin and washers have been eliminated The oil groove in the driveshaft has been added The flange of the driveshaft has been eliminated The driveshaft thrust bearing has been changed to taper-roller type The driveshaft spring housing has been changed in shape The driveshaft bearing housing has been changed in shape The pinion gear back up shim has been changed in shapeEffective Engine Number DF40: 04001F-510210 and later DF50: 05001F-510466 and later The driveshaft and related parts have been changed to the components for the 2004 year model