The springs I mentioned are not tapered (parabolic) leaf springs. They are ordinary 4 leaf springs similar to the springs fitted to the 270 hp Roadsters by Morgan but with a major part of the leaves biased towards the front in order to reduce axle tramp (wind up).
I believe that they are available from Morgan and a number of dealers.
See the photo attached.
So would the Mulberry Tramp rods do the same thing as the 4 leaf springs?
Button
Seattle
