Chrysler 75hp lower unit

[lg69hydros]

Ok. I have searched and keep coming up empty
I have 1978 75hp Chrysler outboard. I’m looking for a lower unit for it. The Motor is a 757H8B. SN #3645
Is there more than one compatible lower unit? Mine is a 2 piece, shaft is a 15 spline. I am looking at one on eBay. part number FC481054. But the engine # is 757HA. I cannot find anything About it. Any help would be great!!

Larry G

 

[Nordin]

All 2 piece gear case will fit from the 60:s (1966) and up to 1978-79 when they change over to a 1 piece LU right on.

If I am not wrong the 1 piece will fit also but you have to modify the mid section for the water impeller housing to be enable to bolt the LU to the mid section.

 

[lg69hydros]

Ok thank you Nordin. I didn’t find that anywhere.