Hi Kevin,I also have the LF 39. The chain plates are 3/8th stainless bar stock through bolted to frame members glassed to the hull, they are about 3 feet long. I pulled my mast 3 years ago, replaced the rod rigging, and basically rebuilt the mast. Goose neck was trashed. Major reason for yarding out the mast. At that time I lulled all the chain plates and inspected. I found minor pitting where water had gotten to the bolts. A quick clean up with red scotch Brite, new bolts and back together. I would imagine the 43 is similar in construction. FWIWDoug. Sent from my T-Mobile 4G LTE Device
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