thanks chaps, although they are basically the same there are at least three significant differences. The number of teeth on the drive wheel, the length of the spindle and the diameter of the spline (and hence number of teeth on the spline)
For my needs the number of teeth and length of the spindle are irrelevant but the diameter of the spline is important.
Take a look at Rimmer Bros online; search on “splined drums” and there are several on offer.
They appear to be for Land Rover Defender but as Morgans have typical LR blades, they may fit. You might need to ring them to get exact size as they don’t quote it online.
