Replace Centerboard Bronze sheave on a Bristol 43.3

[Prime Time]

Hi,
Anyone ever have to replace a damaged Bronze sheave on a Bristol? The Centerboard wire pennant runs over this and then straight down through the bottom of the boat to the board. Looking at it with a bore scope, it is very damaged.

Wondering if it is in a bronze or stainless box that is then fiberglassed to the trunk and sealed in glass.

 

[CalebD]

I'm not intimately familiar with what Bristol used for the center board pennant wire rope sheave but you might be able to find a close enough replacement sheave at McMaster-Carr (type in "sheave" in their search box).
http://www.mcmaster.com/#sheaves/=mfv5d1