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Difference between 4.3 and 3.0 alpha one gen 2?

GaryVaill

New member
I have a baja islander with a 3.0 engine and an alpha one gen 2 outdrive. Can I use an outdrive from a 4.3 alpha one gen2 on this???? I have a whole 4.3 outdrive I can purchase at a reasonable cost. Also can i just change the lower unit over? Any info I will be greatful for...
 
The gear ratio is controlled by the upper unit. The 4.3 upper will not be correct for the 3.0
The lower unit is compatible.
 
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