I was wondering a few things about a leaf spring set up. If I want to run 37's about how much lift would I need? Typically what degree would you rotate the knuckles? How should the spring perches be mounted (i.e. location, position.) What kind of lift is needed for the rear? I know a few details but no where near everything. I would appreciate any other details that may be helpful to an SAS newbie. I want to do this right the first time.