Nuginu

The 6.2 and the 5.3 use the same fuel system I believe. They're both direct injection systems. I personally have a 2017 sierra with a 6.2 and the 8 speed, and I beat it up on a daily basis and never had any issues. My transmission used to shift oddly and rough, but got better over time, and basically cured itself when I put 285/55r22 tires on. Now it never misses a beat. I would not recommend putting bigger tires on the truck as they rub.

That looks crazy! sorry for digging up an old thread, but I don't think I'm the only one that wants to know how this turned out.

6.2L All terrain w/ fox 2.0s all the way around. Still haven't destroyed one of those 22's, which is a miracle lol.