I knew it, like Tour said, that sway bar HAS to be bent or off kiltered to be causing this. THose tabs are small, but it sure as hell takes a lot of pressure and force to snap them off.
I like his advice, too. Get oen from the boneyard (abotu 50-100 bucks at a u-pull) and have a machine shop mod it for you. Insstalling and uninstalling the subframe is a sinch, and I (as others) would be willing to "e-help" you do it.