reservoir

Hello all, I am trying to figure out how to mount some Mojave shocks on my Overland. I finally found an image of the part I need to make this work. Can anyone tell me the part number of this flat bracket behind the bumper that the reservoir mount bolts into? Thank yall so much!

Taken off at dealership for larger suspension. Practically new with approx 100 test drive miles on them. Internal Bypass set $2200