what is the part number?
 

2007 jeep grand cherokee.
i was doing a brake job and used a long bolt through mounting bracket to back the rotor off. it actually bent mounting bracket. I thought i bent it back well enough but now the rotor is not wearing correctly. I think I need to replace the mounting bracket. its the rear drivers side you see in the picture.

I can not find a part number for this piece anywhere. It looks like i would need to remove the hub with the 4 bolts and that bracket will come off after the hub.
In the picture i have circled the part in green. the area in red is what got bent outward. I am still surprised that part could bend. I have a vibration at close to 80 mph and i know thats got to be it.
what is that part called? bracket, knuckle?
a part number and place i can buy would be great.
thanks guys. Happy Thanksgiving!!!