i just did it this morning....granted it wasnt the smartest approach, but the finished product looks good, and i fit my 275/65's in there real nice car looks awesome with the rear wheel wells completely filled out and skinnies up front, what i did was take a cut off wheel and cut lines in the lip every 4 inches then slowly taped them with a hammer to fold them up, then hit'em with a little spray paint to keep it from rusting up...looks great, ill try and get some pics if i can find a digital camera