It took a ton of research and I will get some better pics if you all want. But, here is my rig. Took a stock 2018 2500HD and put a set of Fuel D575 Couplers 20"x9"+20 Offset with 35x11.50x20 Nitto Ridge Grapplers. Tires stick out about 1.5-2" which is about all I wanted.I then added torsion key to about 1/2 way adjustment (34.5" pavement to wheel well trim height) and absolutely no rubbing. I honestly didn't really want to lift it anyway, but considered the BDS 4.5", but now going to save the $3K and get a nice airbag set up for towing and replace the stock headlights with some XB Morimoto's. Feel free to ask any questions, I did not have to trim.