[spdbrake]

I'd get the car aligned as you may have some wear and settings have changed after 29k.
Toe-out and Neg camber issues may not rear its head on one tread tire VS another.
Lowering of positive caster is not common with wear so probably not suspect.
Kuhmo doesn't make the 555G2 but Nitto does.
Nittos aren't known for being problematic, Kuhmo has had several quality issues over the years and nothing on a nationwide level in 4-5 years.