2006-2010 Suzuki DF150 / DF175 4-Stroke Outboards Service Manual, Page 402Get this manual
LOWER UNIT
(c) Install F-gear back-up shim 7, F-gear thrust washer 8, F-gear thrust bearing and forward gear to propeller shaft bearing housing
LOWER UNIT
(c) Install F-gear back-up shim 7, F-gear thrust washer 8, F-gear thrust bearing and forward gear to propeller shaft bearing housing