2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Manual, Page 183Get this manual
LOWER UNIT REASSEMBLY AND INSTALLATION Install: Propeller shaftbearing housing assembly Bolt (Qty2)
Triple Guard Grease
345822: Bearing Installer Handle 342690: Installer Propeller Shaft housing bolt: N'm (0.8 kg-m, 6.0 Ib-ft)