Humming sound

2000 gp se 3.1 77k

there is a humming sound i hear at 45-maybe 60mph. its hard to tell what side its coming from but it sounds more like the rear. but i recently did have tierods and alignment done. when its humming there isnt any vibration or any change of sound while turning. Am i looking at a wheel bearing issue? or something totaly different. i'm not to car savvy. oh and i had the tierods/alignment done about 2 months ago. Thanks for the help! amazing forum we got here.

and is it unsafe to drive like this at all?

thanks again!

2000 gp se 3.1 77k

there is a humming sound i hear at 45-maybe 60mph. its hard to tell what side its coming from but it sounds more like the rear. but i recently did have tierods and alignment done. when its humming there isnt any vibration or any change of sound while turning. Am i looking at a wheel bearing issue? or something totaly different. i'm not to car savvy. oh and i had the tierods/alignment done about 2 months ago. Thanks for the help! amazing forum we got here.

and is it unsafe to drive like this at all?

thanks again!
Look closely at the tires, feel or see if they have a "scalloped" or rough edge to them this will cause what you describe, of course so can a wheel bearing.

Look closely at the tires, feel or see if they have a "scalloped" or rough edge to them this will cause what you describe, of course so can a wheel bearing.


looks like i got something to do in the morning. all i know about my tires is i got them maybe a year and a half ago and there rotated every 6k miles. but i will give em a run through in the morning. thanks for the fast reply!

Like Max said, run your hand around the tires, both in the direction of rotation and against. If you feel edges going against (the tire almost feels like the edge of a dull serrated knife), but it feels smooth going with, it's the tires causing your noise. If the tires check out, a hub would be my next suggestion as well.