I helped my tech do the install, and we didn't run into anything different on my 2020, compared to a 2019 we had in the shop at the same time, that would require any changes to the 2019 kit. My truck's production date is 11/3/2019, so it was an early 2020. Maybe there is a difference in the later production 2020's. I spoke with BDS when I ordered my kit and they assured me their "no fine print" "no questions asked" parts warranty would not be compromised on my install. Honestly, the parts in this kit are so robust and well built, that I doubt there would ever be any issues. The knuckles that come with kit are CNC machined, and made from some of the heaviest iron I've ever seen. The kit seems to be very "over built".