I am sure they feel better, but nobody is claiming they feel like a rack setup. The HD Ram trucks have the same problem as the old mopars, I have a buddy who has spent a bunch of money to improve the feel of his HD Diesel Ram with the steering box setup. He has put a Red-head steering box , spohn steering box stabilizer , high end ball joints and who knows what else .It feels better, but jump behind a wheel of a 1500 series ram with rack and pinion and there is no comparison. No matter what you do the claim is always just that it feels much better.
