Interchange Pre alpha 140 lower unit on a 165 upper?

FlatBlack

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Apr 16, 2013
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I found this thread earlier on a search and it sounds like it worked for this poster, just double checking.

http://forums.iboats.com/mercruiser...s/140hp-mercruiser-outdrive-165-a-258447.html

We have a pre alpha 165 with a cracked lower unit housing. I found a reasonably priced 140 pre alpha outdrive unit locally, and was wondering if I could just bolt up the 140 lower to my 165 upper.

I noticed in that thread that it says the drive gears are in the upper, so the lower housing is the same between the 140 and 165 lower units?

Thanks much.
 

Don S

Honorary Moderator Emeritus
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62,321
Re: Interchange Pre alpha 140 lower unit on a 165 upper?

I noticed in that thread that it says the drive gears are in the upper, so the lower housing is the same between the 140 and 165 lower units?

The gear ratio changes are in the upper. The 140 and 165 lowers are the same.
 

FlatBlack

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Apr 16, 2013
Messages
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Re: Interchange Pre alpha 140 lower unit on a 165 upper?

Fantastic!

Thanks for the help.
 
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