From looking at the undercarriage of the JT, it looks like there is still a little of room around that 35" tire. Some 37s are really small. Plus, I'm betting that flashing could be removed and then fit a 37".
RCV just released their axles for the JL. A piece version that uses the FAD and a One piece version that deletes the FAD.
https://www.rcvperformance.com/axlesets/jeep/jeep-wrangler-jl-jlu-axle-sets.html
Was there any conversation about the Offroad + button above the swaybar disconnect?
Wondering exactly what is changes while in 4hi and 4lo? Throttle response, steering...etc.