Mostly it should just need some nuts and bolts, some Rodeo's may have pre welded nuts on the vehicle already, but usually not all the bolt holes usually just half of them. Anyways, I'd try the local auto store and gets some nuts and bolts to match up to the holes. Alternatively if you go to a muffler shop you can ask them to weld it on for 5-10 bucks they should do it. TT