BIGFOOT GEAR HOUSING
90-828631R3 MARCH 1999 Page 6B-29
Forward Gear Bearing Race
IMPORTANT: Retain shim(s) for reassembly. If shims are damaged, replace with new
shims of equal thickness.
1. Remove race and shim(s) using Slide Hammer (91-34569A1).
27653
a
b
c
91-34569A1
a-Race
b-Shim(s)
c-Slide Hammer (91-34569A1)
Trim Tab Adjustment and Replacement
IMPORTANT: The trim tab is now painted and does NOT aid in protecting the drive-
shaft housing and gear housing from galvanic corrosion (corrosion and pitting of
metal surfaces). Side anodes now provide protection. Do not paint or place protec-
tive coating on the side anodes, or corrosion protection function will be lost.
1. Replace trim tab if damaged. Mark location of old trim tab on anti-ventilation plate before
removal; install new trim tab in same location.
2. The trim tab provides a means to offset (balance) some of the steering load that is
caused by propeller torque at higher operating speeds. If at higher speeds the boat turns
more easily to the left, loosen bolt, move the trim tab (trailing edge) to the left (when
viewed from behind); retighten bolt. Turn trim tab (trailing edge) to the right if the boat
turns more easily to the right. Torque retaining bolt to specified torque.
53931
a
b
c
a-Trim Tab
b-Anti-Ventilation Plate
c-Retaining Bolt and Washer
Retaining Bolt Torque
22 lb-ft (29.8 Nm)
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