Marie,

Unless the old track is compatible with the Harken windward sheeting car, there is no reason to make the holes in the same location. In my case, I had a Harken track that I could reuse and wanted to keep the holes in the same place. You should use the number of bolts recommended by Harken for the type track you get.

I did not use teak, but used red oak instead that was much less expensive and available at a local lumber yard. I made sure that the oak was sealed with epoxy/glass cloth to prevent water saturation. I like how the new arrangement works and have no problem with the traveler lines. It operates much better than my old traveler.

The post you referenced is over 10 years old. The boat that John Colpitts had sold twice since then.