do I need a high amp alternator?
 

Well throwing in a few things that would draw current from the alt, those include:

- dual bosch 044 pumps in a surge tank which means stock pump will stay running

- Flyaudio radio/nav

- Edge CTS

Trying to figure out if ill run out of amps before I find out the hard way lol :nunchuk:

bump....

Stock will either be 105A or 135A, the bigger one is part of the towing package. Add up the rated amperage of your devices and compare. If you don't have specs for something, run it at maximum capacity and put an ammeter tool over the power wire. Add 10% to readings for safe margin.

The fusible link (short skinny power cable) on the alternator will blow somewhere in the 90-100A range. This cable is known to have resistance issues and some people will just ditch the short circuit protection and use a 4 gauge battery cable.

The battery will supply power to make up for the alternator's lack thereof- so you don't necessarily need a bigger alt unless continuous load draws the battery down.

I would upgrade the fueable link like mentioned above. Maybe add a good 4ga ground as well. with thoughs mods alone you should be fine. How much power do you have in your audio system?

stock audio system, I am just going to put it a flyaudio screen/nav and replace the front speakers with some good stuff, but the purpose of this truck is to stay light so no sound systems for me

In total:

stock pump

dual Bosch 044 pumps

Flyaudio

Edge CTS diagnostics monitor

Stock alt won't have difficulties with any of that until you install a really underdrive crank pulley.