Re: dr's
y2k silver gt said:
if you run the 275 15's bfg dr's on back can you keep the stock 17 in rims on front or do you need skinnies in front 15x3 i would think the 15's in rear and 17's in front would mess up the susp or alignment
To add to what Gary01GT said, it is fine to run them like that. You will get a bit less cornering force out of the 15's if you run them on the street, since the sidewall is not as stiff and is taller than the 17's. I ran mine at 12psi at the track, and the car felt fine. It gave a little bit of wobble at the end of the track, but was fine otherwise on the drive to and from the track.
Now, if you can do skinnies, well that will reduce your rolling resistance and unsprung weight off the car. All that will help you drag racing, but don't expect the car to be a corner-carver after that.
Good luck, whatever you choose to do.