I installed mine on a 6x6 post on the lean-too of my pole barn with some square u-bolts. Its easy to install and seems to work well. There is one very important thing missing from the instructions which I think makes this jib hoist dangerous. If you are utilizing the extended tube, which I did, the lower pivot pin assembly needs to be turned upside down. With a hoist installed on the end of the extension tube the end of the hoist arm on the pivot pin is being lifted up. You are now depending on just the cotter pin not shearing to keep it from failing. I turned mine upside down installing the thrust bearing first. It works just fine that way and there is no risk of the cotter pin shearing. I did not realize this until I had mine installed. Not sure why this is not in the instructions. I am a Mechanical Engineer by trade so I have some idea of what I am talking about. Keep this in mind when installing. My 2 cents.
Graffster 
