So around 60mph+, after I rotated my tires, I get pretty bad steering wheel vibrations. However...sometimes the vibrations or lessen go away when I reach certain parts of the freeway.

Do I need to have my tires balanced, or is it just being really sensitive to the imperfections in the road?

make sure they're balanced properly. i had the same problem and it was the balancing. i guess the guy who put on my tires was in a rush cuz the weights were all jacked up. :no:

take em back.

get them balanced again...make sure they check the air pressure