There are 11 links total, I am on the third link from the end per my dealer
They are parallel after I engage
You need to add washers most likely and tilt the head back.
This will put the bars at a steeper angle unhooked. This allows you to get on more links and take more weight off.
You can add up to 8 washers.
You need to measure wheel wells with truck empty. Then with wd hooked up you want to get the front wheel well measurement as close to original without going over..
Watch vid here.. This may help..
The dealers dont car and did not help you any...
https://images.etrailer.com/static/images/video/install-pro-series-weight-distribution-system-2004-ford-f150-ps49902.webm