Mike, sometimes you just have to call Vans and get direct advice.
The first thing I would do is measure the length of the F732A. Then ask Vans if the one you got in your kit is too short. They do make mistakes occasionally. If the part is wrong, they'll ship you a new one.
If the bottom of your roll bar is aligned with the front of the side skin "arms" and the F732A is the right length, I would just push it into place. It has to be right. But I'd ask Vans to be sure. Good luck. You'll get it figured out.
