No brake pedal

Is the brake light or ABS light on in the cluster? if not you have air stuck in the ABS unit which a scanner will be needs to open the valve when bleeding the system.

This guide can help as well

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

Please run down this guide and report back.

Try bleeding brakes while truck is off. Leave truck off and see if it loses pedal. If it does not, start vehicle if you lose pedal check to see if your getting engine vacuum at the brake booster by undoing rubber hose at the booster and putting your thumb over the end of the hose it should have suction while vehicle is running. If it does you will need to replace brake booster. You have no power assist for the master cylinder.

The ABS module does not have any fluid. Only the ABS pump. Okay, lets start from step one. You conducted bench bleed right? Did you bleed the lines at the master cylinder. The ones that are directly connected to the cylinder.

At the master cylinder there two lines connected correct. Crack open one line a about a quarter turn, then have a helper push the brake pedal down and hold it down. You then close the line, then tell your helper to let up on the pedal, then again open the line again, tell helper to push down pedal and hold it. Then close the line again. Then tell helper to let up on pedal. Do this on both lines until you see a good stream of brake fluid, careful not to let it get all over the place. Do line at the master about three to four times. Then start at passenger rear, have helper pump pedal three times and hold it on the third time than you open right rear line then close it, three times pump pedal hold, open, close. Do this about three to four times each caliper. You should have brake pedal. Caution keep check on master cylinder after each line bleed make sure you do not let brake fluid get to low. Top off brake fluid after each line is bled.

Excellent addition to this thread! :)