Here are a couple pics of a Gorilla hang on I converted with chain. I used Grade 8 bolts and lock nuts when doing so. Used existing holes that cables were originally bolted to.

good idea!  covered with plastic dip or hose would silence it for sure.

Mike

Just did this stand yesterday. Very easy. Thanks for the info everyone. I painted the chain with flat black spray paint. I am not worried about the chain as I will put it up this July. If it causes me any trouble i will wrap it with hokey tape.