Hello RS1ers... I need y’all’s help. Trying to figure out the rear spring rates from my shock therapy setup. The current upper spring is 002321. The problem is with this spring at the correct ride height I have almost zero preload. If I tighten the collar to increase the preload my ride height increases to much. I gave them all my specs..., I’m 210, I carry about 20lbs in cargo, no bumper, no spare,30 inch tires, and I do have a custom cage. They sent me a new upper spring 051321. Can anyone give me info on spring rate. Btw.... the lower is a 052361. Appreciate any help.