Not totally sure what you meant RedReaper, but I tried out what you said. Did not work sadly. I'll try a bit more.
That's my first last and probably worst pageking I'll ever manage to do.
Tried adding quite a lot of weight (300+) to the wheels. It actually got them quite a lot more stiff due to the weight and they seem to be handling the stress a lot nicer. Thanks RedReaper.
Still having bugs but less, so some help would still be appriciated. (video on page 8)