Steering Clocking suddenly off ...

Something moved, bent or broke when you bumped that curb. Doesn't take much, especially if something wasn't torqued properly or had loosened up over time. If nothing else changed that's probably what it is, if you notice any differences in ride height or quality, or any weird noises with suspension travel you could also have broken a weld on the LCA pivot pin hole in the K or maybe on the steering box mount.

You're going to have to thoroughly inspect the suspension, look for anything shiny that suggests something moved or slid, and look for bent steering parts. A helper would be handy, have them cycle the steering wheel back and forth while you look for stuff that isn't moving like it's supposed to. Could be almost anything, bad tie rod end, bent steering arm, UCA that moved on the adjusting cam bolts, loose steering box, bushing that let go, etc...