1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 264Get this manual
Servicing the 7.5 in(19 cm) Gearcase Extension10, 14,25 Comm r:jl
1Using flat blade screwdriver, pry up on the upper driveshaft sealRemove and discard the seal
2Using OMC Driveshaft Bushing RemoverInstaller PIN 330334, remove the bushing and lower driveshaft seal from the extensionWith mallet, drive the bushing and the seal out of the extensionDiscard both parts