Roll Center design theory

[dennis68]

OK, the Chrysler uppers share the same taper and size as the GM truck, which is what most of the round-round arms run. The lower is off by itself, I think Howe will build a precision ball joint with a GM body and Chrysler stud reasonable enough.

The less RC migration the better, no compromise here. RC migration evolves to unpredictable handling very quickily. I don't know that there is a "number" that could be assigned as a reasonable amount. Each chassis is going to respond differently to change.