Help needed for control unit

[KREW2]

Check if you have the mounting frame or not it is riveted onto the mechanism and allows the control to have the cables fitted and the whole assembly posted through the hole cut in the mounting surface and the frame is screwed/bolted on it will also have a larger plastic cover plate other wise the units are the same
If you look in the on line VP accessories cataloque you will see the details.

I'm not sure if my existing unit has the mounting frame, I will have to look. The boat is a 1989 Westerly Storm, so he thinks not. As far as I can remember mine is bolted on inside the lazarette, the only thing protruding out into the cockpit is the spline to attach the lever, and I think the bolts may be glassed in.
The one from Keypart comes without the frame.