[blime81]

I am about to notch my truck as well. I also have a 110 machine. While I know the specs on the machine say you can weld metal that thick using flux core I personally won't be using the 110 to do my notch.

If you must use the 110 practice practice practice first. Grind a shallow v into the gaps to help with penetration and go slow letting the welder cool down every so often. Many of the little 110 units don't have much for a duty cycle.