Here's my preferred setup and parts list:
- Harken 2135 ratchet block
- Harken 150 cam cleat (optional)
- Spring Cup HSB2
- Stand up spring H071
- Eyestrap, LP91100 or H137
- Stainless steel fasteners (I use machine screws, with a large flat washer and a nylon locking nut on the interior of the boat)
This picture shows all the parts/pieces, but is mounted on my Minifish (slightly different setup because of no cockpit lip).
On my newer Sunfish, I didn't bother with the cam cleat, and just mounted the ratchet block only.?
Stainless steel machine screws, flat washers and nylon locking nuts below the cockpit lip.
A handy trick for installing the stand-up spring: use 2 or 3 zip ties to compress the spring, and then you can install the ratchet block connection to the eyestrap.
my2fish