Threaded spring pre-load.

 

Yup, I stand corrected. The 10's were changed. Myself and my Bilsten rep. apologize for the confusion.

What I also did verify again was the recommended lowering. I was accurate with that info. Be sure to stay within that range.

 

Mike - when you refer to the "factory ride height" - do you mean the US height or the ROW height? Makes a big difference.