I bought it from family so I'm not even sure of the year or model. If you could tell me that would be great as I'm having trouble figuring things out and it would be a lot easier to look up if I knew. This is a pic of when it was down.
I'm sure your Hi-Lo is a 1970's model. Go to the forum library and you will see an article from Trailer Life Magazine which shows the covers of Hi-Lo brochures and you can see several 70's covers than show trailers that look like yours.