SummitX

I know this is an older thread but I stumbled across it when I was seeing how big of tires I could go so I’ll share my recent experience. Just purchased a 2020 2500hd Denali The first thing I did was level it at home with the stock keys. I had a 2018 2500hd prior to this one. When I bought the 2018 new and leveled it with stock keys I was very close to hitting upper control arm stops to get it level. Also used almost all of the adjusting bolt on the torsion keys. On the 2020 I have PLENTY of clearance until the UCA stops(3/4”) and plenty of adjusting bolt left after lifting almost 2” to level. I can honestly say on this one I see no need for aftermarket keys or UCA. I installed 295 65r20 toyo open country tires on the 2020 and have good clearance on front and rear. No rubbing when cranking front tires forward or reverse. Happy with the look and the ride feels very similar to stock. My 2018 rode terrible with the front end leveled. The new 2020 is no comparison in ride quality when leveled. Hope this helps for anyone else looking to go with larger tires