Question about propeller shaft size on 79 uniflite 32' sport sedan

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M

mmm

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Dec 15, 2020
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My boat is Aprox. 1000 miles away and I need to buy two new props.
and I do not know the size of the shaft.
Would anybody happen to know this information.Boat is a 1979 Uniflite Sport Sedan with twin 350 crusaders and 71C V-drive.
10-04.000.002 Trans tag
Thank you
Mark
 
Could be anything. Probably 1 1/4, 1 3/8 or 1 1/2. No way to tell without measuring.

Got any earlier surveys? Often shaft size is in there.
 
Do you know the size of the props?
 
Thanks ski

No survey I had to rebuild this vessel when I bought it.
Just forget to measure shaft.
Thanks
 
No they are the wrong size.
That is the problem.way undersized.
Boat in water
 
Ok, you are buying new props because the ones on the boat are undersized. But you don’t know what size they are because they are underwater. I think I’m missing something.
 
Arc said:
Ok, you are buying new props because the ones on the boat are undersized. But you don’t know what size they are because they are underwater. I think I’m missing something.
Click to expand...
Yes that is correct.
The boat prop Wash's at 1400rpm 8 knots.
Supposed to run 3500-4000 rpm
30-40 knots
 
I’m all in. Last question. Assuming you find out the shaft size , what prop size are you going to buy?
 
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