They are lowering springs supplied by Mr.F, the first set the spring company sent out to me were nowhere near what they should have been, there was about 1.5" gap at the top of the spring so Mike arranged to have my original springs sent off and measured. The new replacement ones still have a gap, but a lot less.
zbloke -- there are already drain holes in the lower spring perch I could use but the problem is the springs don't sit completely flat, so the top of the spring is off slightly.
it's not really worth comparing it with the ones I took out as they are completely destroyed and blown in a big way.