Not all the way below. Centerline of heim bolts are 1.5" below centerline of axle. This does result in the bottom of the 1.25" heims being like 1" or less lower than the bottom of the axle tube but they have never hung me up or even scraped rocks. There's still paint on the bottoms of the brackets.
And yes, I could tell a difference from before it was behind the axle with opposite ackerman vs. now with correct ackerman. It turns much smoother and sharper now. I won't ever set another axle up with opposite ackerman again.
I think I saved every picture of steering behind the axle I could find when I was building my rocks. I think they are still on my home computer I can post later. Here is what I started building before selling that rig and the axles separate.
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