Watch this video. This shows proper set up. Make sure to measure wheel wells before and after. ( This is how I set mine up and was right on the money when I got the front to the same mesurement as truck alone)
Note you need 5 links of the chain min... Also at the 5 min mark it shows the bars angle up. This is wrong and they correct it in the video. Either add a washer or two or move angle a notch..
Your WD hitch is similair and they all work similar. So adjustment is the same with the chain type...
Post back any questions.
WD set up..