So I want to go with beefy tires on my 18X10 DD Bullitts (295/45/18s), but the clearances ate too tight for my tastes. I don't want to roll the lips. Can I safely use coil spring spacers on the rear to get the extra clearance?

 

spring spacers are for ricers, bad for the springs too.

 

45 series tire on a 18" rim will throw your speedo off