Got my wife a 2019 Bighorn, has some nice options. LED lighting, Tow Package, 12 inch screen. While I was looking her over, I noticed something different on each end of the rear axle housing. Some kind of bracket, a U bolt going around the axle tube, with some brackets that are under it and those are bolted the axle in the area the brakes are bolted on. My 2020 Laramie doesn't have these. My Laramie has LSD, but the Bighorn doesn't, not sure if this is why. Attached pic 
