[Novice Goat]

Finally getting around to replacing the original rear end gears and installing a posi. Took the old one apart 6 months ago and am finally getting ready to final assembly of the new when I see the attached ring that I don’t remember where it goes. Seems like a carrier shim to get the backlash right, but want to get confirmation from someone that knows. I’m hoping it’s not part of the inner pinion race, because it took me forever to get the wear pattern right.