I finally decided to make the upgrade to see if I can remedy the sway issue I have when the camper is loaded. I ordered the Hellwig Bigwig anti-sway bar for the rear of my 2015 Chevy 2500HD, 4X4, l...
The assembly instructions say that the bottom of the bar needs to be level with the bottom of the differential housing. That is how it is. You get it that way by adjusting the end links until everything is level and in place.
Here is the link to the instructions that say what to do. Look at page 4, Item #11. This is for Model #7270 which is for my 2015 Chevy 2500HD