2002 Yukon, Grinding Noise when Stopping not brakes

[mularcher]

I have a 2002 Yukon 4x4, 6” lift. that gets a grinding noise under deceleration.
It sounds like a grinding noise you’d hear when the front brakes are totally gone. Thinking the brakes were due and making the noise I replaced front pads and rotors (20% left on pads). The rear brakes were changed two months ago at the dealership. Long story but I lost a caliper bolt causing the caliper to wedge in between the rim and emergency brake cable and locking up the rear wheels. After changing the front pads and rotors it made no change.

I get the noise more noticeable when braking from 20 mph to 0. I don’t seem
to hear it under hard breaking from high speeds. I’ve jacked the truck up and checking wheels for any play
which there was none so I think the wheel bearings are ok. This is weird but I think I hear the more when the gas tank is almost empty could
the truck unload under braking more? I don’t hear the noise as much with a full
tank.

 

After testing at low speeds next to a block wall where I could really hear. This is defiantly a front end grinding noise. I did the 12/6 test on the wheels, Can a bearing be bad without loosening up or make noise when spinning tire by hand? What other bearings in the front end could be making that kind of a noise other than the wheel bearings. U-joint or Slip yoke, CV maybe?

Thanks for any help

[Jsdirt]

First place I'd look is that dust shield on the side you lost the pin on. I'd bet the shield is bent, and contacting the rotor.