I have a 91 F-150 I'm and doing a sas I need a little help on were to put the radius arm brackets and if i should drop them any. I have 7in lift springs put I feel like its not going to flex enough running 38 TSL. Who has ideals what spring should I get? Any and all help will be greatly valued

i just did a 91 bronco over the weekend, i used a 2 inch drop radius bracket