'08 Yukon Denali (so 6.2)
For the passenger side I used a Dorman part # 523-240 (the OEM p/n is 23104735)
For the driver side, there isn't a non-OEM option so I used the OEM one, p/n 23104736.
The driver side mount is a little more difficult to find for some reason, and not sure why Dorman would make one but not the other, who knows. Of the two when removed, my driver side one was definitely more worn out.
Passenger side has two threaded studs that pass through the mount pad on the diff secured by nuts and looks like this:
Driver side isn't as flat like the passenger side, is thicker, accepts bolts that pass through the diff carrier case, and looks like this:
You can buy the four bushings cheaper, but then you have to press them out/in after removing the mounts. A little more expensive, but less work/easier in my opinion to just get the whole brackets.
Not a hard job to do, just a little time consuming (at least for me) getting the driver side bracket out. Less room on that side coupled with a thicker and not exactly flat/straight chunk of metal results in lots of twisting, prying, shifting, raising/lowering of the diff to snake it out. Passenger side is super easy.