I installed the new Hotchkis springs over the weekend. I have the Mopar offset hangers, not the Dr. Diff ones, so I'm not familiar with the hole location on those. Years ago, I had drilled a second hole for the spring higher than the original hole to lower the car. The "geometry corrected" Hotchkis bracket has the hole just about in between the two holes I had in my bracket. Instead of drilling another hole I tried the top hole first- way too low. Took it back apart and put them in the lower hole, which I believe may be close to same location as a stock hanger. This resulted in a good ride height.