Well, I guess I'll reply and probably jinx myself
I got my 2004 GT in January of '03. About 30K miles since then, all I've done is change the oil every 3K. I've had no problems with my Goodyear Eagle tires. Everything continues to run smoothly and no odd ticks, grunts or squeeks.
I've had a wide variety of cars and SUVs and the Cruiser is one of the best I've had (so far). Worst was a Saab 900s...virtually everything on it broke within the warranty period. Tire problems folks report are not unusual. I've had speed rated tires from several mfgs (including Goodyear) all have had problems...I think it is the nature of them.