Hello!
Today I'd like to present my idea for an axle I made, probably most ideal for small MOCs and model team trucks. A couple pictures, front and back (please ignore the 7L beam with the wheel on the end, I used it to prop it up so I could take photos :P )
The two links on each side allow the pivot point to be projected outwards, creating a pivot very close to the center of the wheel, and somehow it also has Ackermann geometry (tbh, the ackermann was not even intentional, I was ecstatic and very surprised when I first steered it ) Steering is done by rotating the cam you see in the middle of the axle.
Well, I think that about covers it. I hope you enjoy it, and feel free to incorporate it into any MOCs if you wish.
Happy building,
Junpei