Originally Posted by blnewt

No don't switch to taller sidewalls, you really need to keep your diameter close to OEM size, the 275/30/20s are the proper diameter for that 275 width, going to a 40 or 50 would bring all sorts of issues to your traction control, ABS, and your speedometer would be way off. Post a pic of your whole car for a better reference if you don't mind.

Originally Posted by blnewt

That looks real nice & even, some lowering springs drop the rear of the car too much and you getting "sagging-****" syndrom. I would be very happy w/ that drop. Do you have a measurement from the bottom of the ground to the top of the rear fender edge?

Originally Posted by Bota36

Blnewt is correct. You need to stay with the 275/30/20 as it's close to OEM. Measure with a yard stick from ground to the top of the wheel well. You should be at or around 27" for front and back. If not, you may have had the springs installed incorrectly.