Thanks Pete,
I didn't take any photo's and it wouldn't show you much anyway. Do you know where I can get "cotton reel "mountings from other than Rimmers ? Yes I changed the rear support, it came with the gearbox and prop shaft. I've just had another look at it, having found the original "cotton bobbin mounts". I am now suspecting that someone has previously done a welding repair on the chassis in that area and used thick metal. I'm wondering if I can elongate the slot that the mounting rubber sits in, to get the back end of the box lower by a few millimetres.
Paul.