70 hp force 1991-1995 prop

[Paul fun fish]

Can anyone tell me how to size a prop
There are no numbers stamped on it except Michigan
142003 when I look it up on iboats it comes up as
A prop for a Nissan nothing about a force I'm pretty sure this prop is a original to the boat and motor
The RPM s seem to be very close it planes ok approximately 35 to 40 mph depends on conditions
This prop is pretty banged up and is causing some vibration

 

[jerryjerry05]

Take it to about any boat dealer or repair place and they can fix it and give you the info on size??
​The Michigan #?? contact Michigan Propeller and they can tell you what those #s mean.