That's a funny coincidence. We have a 1983 3207 too, and I just finished replacing all the cracked and splitting teak treads in the after deck (transom) ladder, and replacing the black rubber/plastic tread that was missing from the last rung of the lower ladder. The black plastic tread I found at the Ft Pierce Marine surplus store and used JB Weld and c-clamps to hold it while it set. The wooden treads were a different story -- boy what a job. Never could find 19" x 2-7/8 x 1.25" thick replacement treads so I had to fabricate them, grooves and all. I also had to take the rails to a welding shop to have all the holes filled. The bonehead previous owner apparently stripped the setscrews in the rail fittings so they wouldn't tighten, so he drilled extra holes and screwed in some plain old pan-head machine screws - mild steel of course so they rusted. Had to replace all the fittings, but luckily the welding shop did a great job on the swiss cheese rails so I didn't have to replace those, custom-formed for the boat as they were. As to your question though, I didn't know there was a clip. If we're going to be underway in rough water we usually just wrap a short bungee around the rails so that ladder doesn't flop down unintentionally. There's supposed to be a clip for it??