you will probably be rubbing on big bumps and bumps when cornering going over like 20 mph. what i said about how bad i rub is with a 5/3 drop because no one will get back to me about any damn leaf springs. anyway, with the angle a 5/3 creates, the top of my tire was closer to the top of the wheel well than a true 5/6 would be. make sure you remove the bolt exactly at the top of the inside of the wheel well otherwise it will cut a groove in your tire everytime you rub. i think you will be okay, make sure you get some good shocks = belltech nitro actives are what i have and it handles really well, screw a soft ride i say. let me know if you don't understand my rambling train of thought.
John