If a dealer has the key, it's a miracle!

Dealers can still cut these keys by hand (if they have a Curtiss key cutter), but most will not bother. In order to so this, the specific key code must be known...and the correct key blank is required.

Forget the dealer, go to a key shop. The ignition key is the SAME as the door lock cylinder keys (as original), so you don't have to mess with the ignition switch.

Just remove one a the door lock cylinders, take it to a key shop. Most locksmiths can come to your truck, pick the lock and make you a new key, but this ain't cheap.