This is great info and gives me something else to check. I've had a noise in the rear end since installing the springs, control arms and lowering brackets. I've retightened every bolt twice and still the noise. It sounds like it's coming from the rear shocks but this is very close to the spring tunnels. I might have the same issue of the springs hitting. I initially adjusted the LCA's to center the rear wheels in the wheel well but I did lengthen the UCA so the springs could be hitting. Can't wait to check and see if this is the issue.
2013 Race Red GT MT82
MGW Shifter, Whiteline LCA's, Lowering Brackets, Panhard Bar and Brace, UPR Double Adjustable UCA and Bracket, Eibach Sportlines, Koni Yellows, Ground Control Caster/Camber Plates, MBRP Race Cat-Back Exhaust, Roush Front Spoiler, JLT CAI and Oil Seperator, Bama V2 Tune, Joe Heck Racing Braided Clutch Line, T/A Performance Rear Bearing Cap Studs and Differential Cover, USA Alloy Rear Axles, PowerStop Brakes.