Maybe go visit a shop that specializes in exhaust replacements, they should have a good selection of hangers to look over. Thinking back to my car there is a C shaped piece of steel strap that slides into the rubber isolator on one end. The other end is clamped to the exhaust pipe in such away that the other end is being pushed into the isolator as the pipe moves. The clamp Mopar used was screw type hose clamp (not a gear), but I've seen many using classical muffler C-clamps. Some installers use the C strap in the isolator and then weld the other end to the exhaust pipe. That could be why you have the isolator ends but not the other which is still welded to your old pipes. I prefer clamps so I can make adjustments if rattles develop later on.