- Standard rotation upper gearcase
- Counter rotation upper gearcase
It is essential to know which drive you have before ordering your gearcase. If the wrong gearcase is installed
on your boat, the steering will be reversed. When turning the steering wheel clockwise (right), you will turn left, and when
turning the steering wheel counter-clockwise (left), you will turn right.
Follow these easy steps to determine which type of drive you have:
| OMC Intermediate Housing |
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Remove the upper and lower gearcase from the intermediate housing. Standing behind the boat, looking toward the front
of the boat - you should see the intermediate housing (as show to the right). Locate the steering gear. It is the small spur
gear to the right of the ball gear.
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Have someone turn the boat's steering wheel clockwise. If the steering gear (shown in photo with black
stripe on gear) turns clockwise, you have a right hand worm gear. This indicates you have a standard-rotation
drive.
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| OMC Steering Gear |
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Again, turning the boat's steering wheel clockwise, check the rotation of the steering gear (shown in
photo with black stripe on gear). If the steering gear rotates counter-clockwise, you have a left-hand
worm gear. This indicates you have a counter-rotation drive.
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