I have a set of Torque Thrust D's on my 07 XLT 2WD. I got the wheels new from Wheels for Less.com and the tires new from Costco but put them on the truck myself a few months after I got the tires mounted to the rims (winter OEM wheels and the TTD's of Summer) My saga is , I noticed a weight missing off one of the TTD's so I brought them back to Costco ( on the truck) to get them all re-balanced. The tech said I should have "Hub" "Consentric" (sp) "Rings" on them. I called Wheels For Less and they said there isn't any available for my truck they are more or lees for front drive cars. What do these things look like or do?

Thanks,