About four years ago I replaced my original overload springs with a new set from IPD in Oregon. The original overload springs had performed well over a seven year period but eventually began to sag. I don't know where they came from When I replaced them, I noticed that the IPD springs where made of lighter steel and just barely raised the sagging back end of my 240 wagon above where the worn out springs were riding previously. I should have retruned the IPD set and found some good springs at the time but it was too much trouble. I am now fed up with these whimpy IPD springs and would like to find some real overload springs. Does anyone know where to find the real thing?

Thanks, RDP