Stop in for a cup of coffee

I checked for a tag and can't find any... I need to figure out which ratio it is so I can list them for sale... I have the matched front and rear, or can sell separately, but the buyer will want to know the ratio...
Usually 3.55 seen 3.23 and 4.11 in ones I have pulled apart. Should be a stamp on the axel tube with a p/n then gear ratio let me find a pic for you.