Wanted a Tremor but couldn't give up the long bed. Just installed 285/75r18 duratracs on Method 701 HDs on my 2021 XLT. Planning on purchasing the PMF lowering shackle along with air bags (I tow a skids steer a most days). With 3:31s I can't believe how awesome the mileage is. I lost some city mileage with the bigger tires (34.8 vs 32.1) but my highway mileage is nearly identical falling right around 19 mpg on the computer not accounting for the larger tires. When I put a similar tire wheel setup on my 2019 RAM I lost about 3 mpg highway. Loving this truck and the 10 speed in particular..