hey does anyone know whats the widest tire i can fit on a 15x7 inch steel wheel. they are the stock wheels that came on my truck i was debating putting some drag radials on them for the track i want to run a 50 series sidewall but wasnt sure how much i could push the tread width i will probably run a 225/50/15 up front but i dont think that will be sufficient for the rear to hook up. hope someone can help. thanks guys!