The 2" front bushing and 1-1/2" front bushing that apparently differed from 6 cylinder to 8 cylinder cars. But whatever doesnt matter, ill find the right ones.
As you've discovered, the application catalogs all all messed up on these. I know the mistakes go right into the '70s on Dusters and Demons. The only reliable way to get what you need is to measure and order by dimensions.