ABS Kicks On?

I did change front rotors and pads+clips, drove 100 km in town with many stop and go. Mounting hardware don't seem to be damage"sliding pins and caliper work fine". But no change except for on clean and dry pavement, the truck brake like a new one.

Hoses are not twisted, and sorry but there is too much snow and ice to make a conclusive video.

1. Beside a loose wheel bearing (which are solid), I don't know what can affect the brakes that way, but there is a ball joint that will need to be change soon.
2. All my calipers are releasing well to the point that the truck on the top of a hill, in neutral, release the brakes and the truck goes down the hill.
3. About the push rod, if i'm not mistaking, if I adjust it inward, it means that there will be less fluid pressure in the front calipers?
If so, there will be also less pressure in the rear calipers?
But I need more pressure in the rear and less in front!
Here a video at very low speed just to show what it do.

It's the best I can do as video, being alone at 40km/h(20m/h).

No light on and engage at the end, at almost stop.

Yes all lights comes on and goes out when engine starts.

On dry pavement it's not that bad but as soon there is sand or wet pavement and on dirt roads, the truck do like on snow.