Checking for the Differential Lock on Other Models

What happens here

To highlight that the differential lock feature (activated by pulling the 4x4 knob) is not universal across all Ford trucks, the speaker moves to an older Ford F-150. He gets into this truck and demonstrates its 4x4 selector knob. While this knob offers the standard 2H, 4H, and 4L settings, he clearly shows that it lacks the 'pull' mechanism. Therefore, this older F-150 does not have the integrated differential lock feature demonstrated in the newer F-250.

Goal: Verify the presence or absence of the differential lock feature on a different Ford truck model.