2019 JLUR with 4.10s on 37" Nitto Grapplers. I have the 2.0T and live in Colorado. No problems hitting all 8 gears, can go over 100mph + in the mountains, no problems on trails and I get 22mph highway, 19 in the city. Everyone says go 4.88 but I haven't had a need. I was hoping the 37s would actually slow me down because the 2.0 is fast and gets me in trouble. The 37s didn't slow me down at all. The only JLURs I hear switching from the 4.10s are the 3.6s. Glad I got the 2.0 Hurricane engine.