Understand, the Hustler hubs I found running 20x12.00-10 uses a 10x8.5 rim with 3.12" backset, The Bobcat info is confusing because on the chart it shows 10x7 rim but it you look close. Go here https://www.m-and-d.com/solr/words/4168348.html
I believe it shows there is an error on my original...