Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) Rear springs

It really looks to me the the axle is too close to the bumpstops. I removed one layer of the rubber to maximise the rebound travel but I have a different setup If the axle is hitting the bumpstop hard on rebound it can give the effect of crashing over the bumps that seems very similar to when the shock bottom out.

As pointed out the U bolts (and/or the nuts) should never touch the chassis on maximum rebound. If they do not only will it give a violent jolt in maximum rebound but it will do damage in time. I see from your first photos that the excess thread on the U bolts has already been shortened as much as possible.

I would feel inclined to check it with two people) or equivalent weight) sitting in the car as well. Peter Ballard once told me tha ideally leaf springs should be flat when under normal load, but I'm not sure if that condition can be achieved with a Morgan.

Just a thought but you may be getting less body roll with this setup because the spring on the inside of a curve is at the maximum of its possible extension in corners with the axle resting on the bumpstop. .

I suppose, if necessary, you could always fit thinner lowering blocks.