>I will probably try 215x65x15s (since I have four) on >15x7" GM wheels this weekend & see how it feels. So much for that idea. Only fits on the front if you do not turn the wheel. 25.5" diameter is too much or GM wheel does not have enough backspace. Question now is 14x6 or 15x7 on front. Am leaning toward 14x6s. Probably in 195x65x14 since a good selection. Padgett