Here's something else to consider. There's that goofy spring (on the columns I've seen) that catches maximum tension on the lock pin itself off the ignition cylinder drive position. If that spring is fukkurd up, it will mess with deployment of that lock pin. If yours is intact and attached properly, no issue. I only bring it up because with the corrosion issue you described, if there's friction enough to overcome that spring power to move the pin, there's the low but not zero chance the pin will remain engaged to the lock plate. Leaving you with a truck that will start and run like it always did, but with a steering wheel leaving you with only one track to go down.
