I've had my T-Bird Sport for about 6 months now. When i bought it it had about 15,000 miles adn still had the original rubber on it. After my buddy dropped it he replace the front tire w/ a Michilin Pilot but the back still looks pretty good so we left it. Anyway, over the last 2 weeks I've had a couple of close calls and almost ate it because my back tire is sliding all over the place. I've tried to find a 160/70 match but haven't had any luck. My dealer suggested to us a 160/60, but i'm not sure if that's going to affect the ride. Does anyone have a thought on that or what would be a good matching set to go with?