Originally Posted by Hepy117
Maybe a wheel bearing or bushings?
Yep, what he said, wheel bearing.
I noticed my wagon would feel like the tires were out of balance on some highways other times the car felt normal.
Since replacing the bad wheel bearings the problem has gone away.
175,000+ miles, 5/20/12 new ej257 short block, 8/20/11 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. Also CHECK YOUR OIL, these cars use it.