For decades, Morgan trads come straight from the Factory with bump stops. For example, look under the hoop that anchors your dampers. See the thick piece of ruer.
You are correct. My 2014 4/4 came with a rubber bump stop on the hoop designed to impact the diff casing. When first inspected, it had never contacted the diff - even though I had experienced loud crashing as the springs hit the frame and the tool tray was hit by the diff casing. I fitted a second one to double the thickness when I changed the springs (Mulfab 4 seater 4 leaf). The new springs made a huge difference to things. I suspect I was a victim of a poor batch of factory springs. Sadly, the crashing bottoming out was not completely eliminated. The design simply doesn’t fit in recent cars with the plastic tool tray.
I fitted Roger’s spring assisters / bump stops recently and adjusted them as advised. The crashing finally stopped - even with a full load of touring luggage.
