thanks, thats interesting part 2AU143
http://cgi.ebay.co.uk/Rover-216-89-9...ayphotohosting is the same as RG302 which interestingly is what Adrad have told me I need. Been and re-measured the chassis mounts, I recon it will fit but be tight at 590 spacing what I may need to do is fettle the bottom plastic mounts by a mil or two to fit if necessary.
John (limpabit) I dont suppose you have the part number of the one that wasnt a RG302 from adrad? otherwise i guess I may just have to take the leap and get one and bodge the mount if necessary its certainly a better fit than my current one which is about 100mm out. and I feel buying for approx £50 and bodging is better than about £110 for the one the options list.