once in a while driving down the road the engine quits, fuel or electrical?

This can be about 15 different things from a bad relay or fuel pump to the ignition switch. I can help walk you through the repair by isolating which system is failing. This can be a challenge because it starts right back up. I have seen the fuel pump relay over heat and cause this issue. Here is the location to see if it is hot after running the truck for a while. I would swap out the ECCS relay as well.

This guide may be able to shed some light on the satiation as well:

https://www.2carpros.com/articles/engine-stalls

Check out the images (below). Let us know how it goes.