I think Fleabay had a set of one and a half inch lift leaf springsfor about one-thirty-five. I don't think shocks will solve your problem and I don't know what size tires your sporting.

 

+1 on the shocks will not stop the rubbing. Tires are too big. Maybe try a longer axle bumper. I know they don't make one to fit but you will have to "cut and paste".

 

+1 on the other posts; new shocks won't stop the rubbing. Are you running a larger than stock tire size? That would be the most obvious source of the rubbing.

By the way, same thing goes for the springs. Stiffer springs might reduce the number of times you rub when bottoming out, but the problem remains that the tires shouldn't rub even when you bottom out.

 

The tires and/or wheels are too wide and tall. Put some decent sized tires on there.

 

shock and rolling the fender lips might fix it how old are your bump stops and do they feel hard or soft