Kudos to you sir, nice looking parts. I'm always amazed when people can do things like this themselves.
The ones that are currently in use are 2 years old and when I had a look at the one that has been used the longest the surface looks untouched, no marks on it. They seem to have last really well.Let me know when you sell these and how much $$ If they hold up to the starter clutch long term this could be a great addition.
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