If you unbolt the 10mm bolt holding the brake line and shocks you will get plenty of room to work. When you are finished take your rear springs out and slowly lower your car until the rear looks like it would be around ride height, maybe a little lower. You will be able to tell if your over axle pipes will hit the axle or not. Do not lower it too fast or too far.
__________________ 2012 5.0 brembo, paxton, jlt,lund, bbk cat-delete, bbk x-pipe, gt500 ab, d-spec, gt500 strut mounts, k springs, motor mounts, mgw, jhr clutch line, dot4 fluid, upr/lca, relocation brackets. adj panhard bar. | 
Lowering the rear axle assembly 
