This item is used on multiple models.
It is a part of these assemblies:
56C-116, 56C-117 and 56C-80ST
Turnbuckle and Screw Notes
If you are trying to replaced just the hooks in your setup and aren't sure which is which?
I'm using -?? here with the prefix part numbers, as I'm putting these notes in all of the various 99/165/155/56 part screens..and there are different sizes depending on the reel and the braces.
Identify the hook type by thread direction on the hook. Hold the hook so the threaded end points down. Now, look at the threads:
#99-?? LH threads angle down towards your right and are turned counter-clockwise to tighten into the #155-?? turnbuckle. The #155 turnbuckle has a notch cut into the end of it where the LH threaded hook goes.
#165-?? RH threads angle down towards your left and are turned clockwise (righty tighty) to install in the #155-?? turnbuckle at the smooth end.