I'm wanting to purchase a bike rack I've found that is 'hitch mount' only. Strangely, my car has a towball mount, but does not have the 2" x 2" hitch mount - the towball tongue bolts straight onto the chassis: Has anyone else had this problem and is there an adapter, which is essentially a hitch mount that uses the same 2 bolts to attach to the chassis? I've googled the hell out of it and come up with nothing. Most of the regular set-ups on my model car have the towball tongue going into a hitch mount mount. I'll try Ford, but being an older model car I'm not holding my breath.