There won't be too many manufacturers of springs left nowadays. There was a problem with remanufactured MGB springs way back in the eighties. Original BL spec springs were supplied with a nylon type interleaving and with half a dozen or so keepers on each spring. These were made from two stamped brackets which interlocked with each other around a nylon spacer.
The remade springs had no interleaving and the keepers were a simple piece of steel which was rivetted to the lower leaf and hammered round the spring. They all seemed to have different static camber, soon flattened and were hopeless. It took a long time and many complaints before things improved.
Morgan springs are nerrower than MGB springs, with fewer leaves, and those I've seen at the factory all look to be the same. It seems unlikely that a batch of sub standard springs should all end up in Oz, unless all cars built at that time are similarly affected, so I would be inclined (Ha!) to blame the shipping conditions.
