I have an Fabtech 2” top mount leveling kit installed on my 18 Silverado Crewcab.
Bought it from our GM dealer, and had it installed by them. No difference with stock ride, no sounds or vibration. And no negative affect to GM’s warranty. The work they did other than the install, was wheel alignment and they adjusted a very slight reduction of the turning circle. They also adjusted the headlights.
They advised me that 2” was the absolute max to go for a leveling kit without causing problems..
Greetings from Dubai! I bought a few weeks ago my 2018 5.3 Crewcab Midnight Edition with Z71 package, 50% tint, and Bakflip MX4 bed cover. Its my first Chevy in my 30 years of buying history, and can say I am impressed with the ride and build quality. I did on this forum a lot of research before buying;
it was very helpfull reading all the posts.
I do not plan any modifications right now, other than removing the lower airdam; I like the truck as it is.