I have a 1971 Chrysler 45 h.p. outboard. Serial number is 454BC.
The 'Owners manual' says it has a 12 and 1/2" pitch prop.
A 'Service manual' says it has a 13 and 1/2" pitch prop.
I need a new one, which spec. should I trust?
(Other particulars are: Aluminum Alloy, 10 and 3/8" diameter, 3 blade...
