Here's a source for that Crossfire locking lug bolt set. Be careful ordering. I'd call first because I thought that these sets came with master keys that differed slightly. So no guarantees you'll get a set with a master key that fits your lug bolts. Probably will have to remove the existing locking lug bolts and then install the ones from the new set you order.

And a set directly from McGard may be less costly. By the MOPAR packaging, McGard manufactured these locking lug bolt sets. (Note: Looks like McGard locking lug bolt set for Crossfire is about the same price.)