Squealing sound coming from right side

Hello, my 2000 Windstar 3.8L is making a squealing sound coming from the wheels on the right side, it isn't very loud and it will become less noticeable as the van goes faster, you can only tell it's there with the windows down, also the van will sometimes make a low pitched grinding sound on the rear right wheel when slowly releasing the brake or braking at low speeds, is it possible that both sounds are related to the brake pads are worn out?.

Thanks for your help.

Oscar

I forgot to mention that the right front wheel hub was replaced about two months ago.

Can you hear it if you spin the wheel by hand?

How much brake material was left when you replaced the bearing.

Have you checked the brake pads?

Hello Airjer thanks for your help I checked the right wheels this morning and I couldn't hear the sound, I even lifted the whole front and put the van in gear so the wheels could spin freely at normal speed (I like dangerous things lol) and there was no sound coming from the wheels, checked the brake pads too and it seems I need new rear pads, I have uploaded some pictures of the rear and front pads, is it be possible that the worn out pads are causing both sounds?

REAR PADS:
http://a.imageshack.us/img844/8017/img00504201008241028.th.jpg (http://img844.imageshack.us/i/img00504201008241028.jpg/)

FRONT PADS:
http://a.imageshack.us/img442/6898/img00507201008241049.th.jpg (http://img442.imageshack.us/i/img00507201008241049.jpg/)

Oh one more question is it normal that one wheel will rotate faster than the other when both were in the air or only one wheel was rotating with the van in reverse gear. I don't have much knowledge about how transmissions work hehe.

Thanks

Oscar

Yes it is normal.

Take a closer look at the rears. I would bet there is an indicator rubbing. If nothing else they are do for replacement soon anyways.

Yes it is normal.

Take a closer look at the rears. I would bet there is an indicator rubbing. If nothing else they are do for replacement soon anyways.

Yes, I guess it will be better to replace them anyway, I will save the time and hazzle of taking off the wheels again within a short time. Thanks for your help I will post back after changing the pads.

Thanks again for your help Airjer.

Oscar

OK so I had the rear pads changed today but the van still has the squealing sound, just like rubbing a hand against a window but it's not present all the time and it's not too loud, it can be heard only after some time of driving the van. Is it possible that the front pads are getting stuck because of brake dust and not releasing the disc entirely?.

When I took the front wheel I hold at the 6 and 12 o'clock positions and there is no play, but if I hold it at 3 and 9 it will have a only a little, the inner tie rods must have worn out, that's something i'll do ASAP, what would it be the consequences of not replacing them and how hard is it to replace them?.

Thanks in advance

Oscar