Headlight lens replacement?

The are not clips you must replace the entire lens. Here is a guide to help you see what you are info when doing the job. This video shows the job being done on a similar car but the process is the same.

https://youtu.be/IZ2vCCPxLqU

Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/headlight-lens-replacement

Here is what it is like on your car (below) Please let us know what happens.

First, remove the metal clips from the plastic nuts where the headlight adjusters are. Second, unscrew the nuts (3 each headlamp)from the adjuster screw. Third, slowly wiggle the headlight assembly forward. Fourth, disconnect the wire assembly from the headlight.

You should take your truck to an inspection station (or garage) to have the final adjustment (aiming) made to the lights.

The light assembly is mounted under the hood. Open the hood to access the mounting bolts. Remove the light sockets from the assembly, remove mounting bolts, and remove the old and replace it with a new one.

The choices are almost endless in the aftermarket for replacement headlamp bulbs. If cost is not an issue, HID (High Intensity Discharge) systems may also be available but these systems can be very pricey. I have such a system in my vehicle. From the outside, they have a bluish tint, but from the driver's perspective, it's a very bright white light. These systems require a transformer(s) to provide voltage to the HID bulbs. The best way may be trial and error.

There are many that will help. Ask at a parts store what they have available.

Here's an exploded view that should help. View "A" is looking at it from behind. It looks like there are 3 clips that pull straight up.