Rotational squeak

[crapstang]

I have an incredibly annoying rotational squeak from each of my rear wheels. Pads/rotors are in good shape and everything behaves just fine, but there's a squeak for every revolution of the wheel. What should I check for?

Thanks DFWM!

[Baron Von Crowder]

driveshaft

[shumpertdavid]

If it sounds like a bird chirping look for a tight ujoint. Is this on our mach?

[Strychnine]

driveshaft

One squeak per wheel revolution won't be a driveshaft, but multiple squeaks/rev could be.

[Baron Von Crowder]

One squeak per wheel revolution won't be a driveshaft, but multiple squeaks/rev could be.

yeah, but what makes you some kinda expert?

[shumpertdavid]

Have the pads been replaced and the rotors machined or replaced? A hard spot or glazing of the pad and / or rotors will cause noise.

[Baron Von Crowder]

Have the pads been replaced and the rotors machined or replaced? A hard spot or glazing of the pad and / or rotors will cause noise.

or a backing plate rubbing the rotor.

[Chas_svo]

or a backing plate rubbing the rotor.

Most likely.

Just drive it. It will clearance.

[shumpertdavid]

or a backing plate rubbing the rotor.

Most of the time when I run into that, it's self induced. I've tweaked them a few times doing brake and suspension repair. I generally catch it before giving back to the customer.

[Baron Von Crowder]

Most of the time when I run into that, it's self induced. I've tweaked them a few times doing brake and suspension repair. I generally catch it before giving back to the customer.

I had one get bent on the top side when someone was putting the wheel on, pulling it down.

[91CoupeMike]

When I was sitting in your trunk I remember seeing that drivers tire wobble.

[Baron Von Crowder]

When I was sitting in your trunk I remember seeing that drivers tire wobble.

quoted for WTF?

[Danny46]

I had this happen once but it was only one tire, turned out that the ABS sensor nut had come off and the sensor was rubbing

[91CoupeMike]

quoted for WTF?

At the track getting a quick ride to the staging lanes.

[racrguy]

Put the car on jack stands and put it in gear, then get out and check for noise location. Make sure it's not going to fall off of the stands!