I'll go look at mine. I think you just have to use one of the different kinds of connections that come with a new pack of wipers. You just shove it onto the bar thing. Sorry to be so technical. My rear wiper always seems like it's going to go flying off but it's never come off, so I guess whatever connection I used stayed put. I'm using RainX wipers now and it came with everything I needed. I just want to know why my rear window spray thingy doesn't spray, it dribbles, sometimes. Anyway, I'm at my mom's house, destressing after quitting my job, and can only do dialup internet, so give me some time to get back to you, but I think that's how my rear wiper is too.
Jenn