ok i have figured out the control arms for the rear and the shock and struts im using but someone today at a performance wherehouse told me that a sportline spring will really hurt my track performance...so it got me wondering will it really hurt it a lot?? .... :dunno: what i do know is that www.stangsuspension.com (our sponsors) O0 have sportlines right now for $209 thats a amazing price! and i need to order all my rear end crap asap!!! so please i need feedback