Yup off a p/97 phase 1 XUD.
Edit: Been told it should fit, obviously you swap the selector arms over (which part of can drop into the box leading it it needing dismantling) - this wasn't a problem. The gear linkages however don't look like they'd fit onto the BE3 box. Some people are saying they do fit, my mechanic is saying they don't. My source: people on forums, his source: he raced 205's for a few years.
Edit: Been told it should fit, obviously you swap the selector arms over (which part of can drop into the box leading it it needing dismantling) - this wasn't a problem. The gear linkages however don't look like they'd fit onto the BE3 box. Some people are saying they do fit, my mechanic is saying they don't. My source: people on forums, his source: he raced 205's for a few years.