Thanks for the replies. The rod on top of the wobble box is as long as it goes. I have about 1_2 of thread engagement in the spring hub. The spring on the lower control arm is backed off as far as it will go. All other springs are backed off as well to give maximum down pressure otherwise the skid plates are riding up over tough, green stubble. I tried running without the wobble box spring but that was too much down pressure. Every year its something different. After 20 years of running a combine, I should have it figured out by now. My son says I dont learn very fast. Tom Russell