Lower until help

Jason-Foote

Recruit
Joined
May 31, 2022
Messages
3
Hello everyone, first post here! I have a 1996 Four Winns with the Ford 5.0 and the Volvo Penta SX outdrive (part number 3968156, 1.66) over the winter my lower unit didn't survive and needs to be replaced. I can't find a lower anywhere with the same part number but some that look the same and are a volvo penta sx... I just don't know what the differences are and if any would be compatible. Any help would be greatly appreciated. Thank you
 

Horigan

Chief Petty Officer
Joined
Jun 12, 2016
Messages
621
You need a Volvo Penta SX-M drive in that ratio. Try Boatwrench.com for rebuilt units.

How did it fail over the winter?
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
47,612
check ebay. the lower is the same for the SX-M's regardless of motor in front. the 1.66 is common
 

Jason-Foote

Recruit
Joined
May 31, 2022
Messages
3
Thanks everyone! That will get me headed in the right direction. I didn't drain the foot oil and I must have had a bad seal that allowed water to get in during the summer months of using it, once it froze it cracked the case. Only thing I could come up with ..
 

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Jason-Foote

Recruit
Joined
May 31, 2022
Messages
3
Been looking at the SX-m and my part number doesn't match with any of them. Also is the ratio of 1.66 in the upper unit? And so any SX-m will work?
 

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