Replacement Parts for 1995 Coleman Pop Up Camper?

My wife and I have a 1995 Coleman Chesapeake pop up camper. I am not sure of the part I have a question about, but I will describe the situation I am having. The metal pipe that sticks out of the pop up that you put the handle into that cranks the pop up open and closed has broken. I am not sure what this part is called and if it can be replaced.

Also, in trying to investigate this I wanted to take off the back panel that surrounds this broken pipe, but it seems that there are special types of screws keeping it together. I did some research and I believe they are called tri-wing screws which if that is what they are require a tri-wing screwdriver to take them out. Any help with any of this would be greatly appreciated. Thank you.