33x13.5's on 15x8's?

[TJVigilante]

Thanks to Damien and Rob I may be coming into a set of LTB's on the cheap. The problem lies in the fact that I don't want to buy new wheels for them....will it cause a HUGE problem if I put them on my 15x8's? I'll have an added 1.5" of overhang on either side of the wheel...I have clearance to the control arms(i think), and I'm not too worried about fender clearance, I'm mostly worried about wear on the tires themselves for fitting them to wheels that are too skinny.

Another option would probably be beadlocking my Cragars. That'll make them a bit wider, and overall more badass. How much would that cost on average?

I'll also need a 33" spare...