1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 269Get this manual
LOWER UNIT 9-16 DRIVESHAFT Slide on the pre-load spring and secure it with the pin 2Assemble the thrust bearing 3, washer and pinion shim to the driveshaftLower the driveshaft assembly down into the gearcase until the bottom of shaft protrudes through center of pinion
DRIVESHAFT BEARING HOUSING Apply Water Resistant Grease to the driveshaft oil seal99000-25161Water Resistant Grease Install the gearcase seal ring into the groove on the driveshaft bearing housingApply Suzuki Silicone Seal to gearcase and driveshaft bearing housing surfaces99000-31120Suzuki Silicone Seal Install complete housing and shift rod assembly on gearcase