GASOLINE STERNDRIVE INSTALLATION MANUAL
90-860172011 Page 81 of 137
IMPORTANT: Be sure to install RH or LH drive unit on the appropriate transom
assembly when making dual engine installations. The LH rotation drive unit can be
identified by the decal on the back side of the upper drive shaft housing, which
states:
“Alpha One - Counter Rotation”
4. Place gasket on bell housing.
70010
a
a-Gasket
5. Install sterndrive unit as follows:
a. Position trim cylinder straight back (over top of acceleration plate). Be careful not to
scratch acceleration plate or trim cylinders.
b. Guide U-joint shaft through gimbal bearing and into engine coupler while
simultaneously guiding shift slide into drive shaft housing. Make sure shift slide
remains upright and engaged with bell housing shift shaft lever.
c. Remove Shift Slide Stabilizer Tool.
d. Slide drive unit all the way into bell housing.
IMPORTANT: If drive unit will not slide all the way into bell housing, ensure that the
shift shaft and couplers are positioned properly. Do not force drive unit into position.
75199
70010
c
a
b
a-Gasket
b-Shift Slide
c-Shift Slide Stabilizer Tool