Pete
The adjustment I made in the pictures took me about an 1 hour using a floor jack.
It took care excess motion when other vehicle pass you plus excess tilt during turns.
The front help reduce the Bob or bounce.
It sounds like your happy with how your couch handles based on your comment above, if however you want cheap this is like beer cheap and only cost is your time.
I have friends that have spent upwards of 7k and the RVs drive like a dream.
You choose
Good luck
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