BDon20s
+1y
Thought about doing this myself. You would essentially need a 4-link (in a sense) with all 4 bars running horizontally (two per side) across the backside of the rear housing, attached to a central bracket with 4 pivots. These bars would control the camber plane of the spindle. Then you'd need either a second set of 4-link bars running front to back to control the rotation of the spindle, or you could also do more of a ladder bar type link with one pivot up front and two at the spindle. Also, the front to back linkage would have to be triangulated in relation to the centerline of the chassis to resist unwanted movement of the spindle.
Its a very cool idea, and would essentially allow you to have 0 camber throughout the entire travel of the rear suspension... but thats half the fun of the IRS so you could just as easily dial in 3 degrees negative throughout your travel if one so chose.
The drawback.... purchasing an assload of spherical joints to make it all happen... do the math... thats like 16 joints, but there are a couple places a bushing end might be better suited. But using all bushings may not give you the movement you'd want to see in the IRS travel.
Nick