Give it a go mate, I would think it'd be fine being a 6-rib with good tensioning on it. Even just to have in the boot as spare.
Yes i fitted one but mines a 6 rib, the quality seems good but only time will tell..... what i did notice was how much it stretched in a short space of time. it was very tight to get on the first time i fitted it and after taking it off after couple of days it dropped back on no problem so had stretched a few mm but i suppose this is commonPJB did you get a Contitech belt , I see Durango seem impressed with the quality just wondering what your views were.
Now I've fitted the BRP tensioner my old belt is a wee bit to long so I thinking of getting one through my local Euro car parts who have plenty on the shelf.