It sounds like the gear position sensor has come apart not allowing the shift lever to move, but to be sure let's remove the shift cable from the transmission and then try to move the shifter. Here is how the job is done in this video to help show you how with instructions below for your truck:
https://youtu.be/UtMsbNzquCk?si=z6Npw4PeeJqH7ETa
If the shifter is working after disconnection, I have included how to change out the gear range sensor. Check out the images (below). Please let us know what happens.
Images (Click to make bigger)
SPONSORED LINKS
Friday, November 17th, 2023 AT 5:39 PM