OP - only one to find out - regear and then start chasing if you have a vibration. I regeared to 5.13s with 33s in Spring 2021 with the 42RLE and its the best thing I have done for overall drivability. I essentially daily the Jeep to keep miles off my car, and that was a PITA prior to the regear, and turning off O/D was the norm. Never have to worry about that now. I can cruise easily up until 76 mph, then I start to get a vibration or similar. It has not bothered me enough to really dig in/drop the front DS.