Quote: .... I'm talking about a bolt-in, ready to go UCA that requires absolutely no thinking. "Install this upper arm on your (fill in the blank) mopar with the tall spindles and you will have the same geometry as if you used your stock or 73-76 a-body pieces." That's what they need to market, and they might even already make it. But that kind of advertising is what's going to sell parts. Then everyone wins.
That will not exist because an A-arm change ALONE will not do that.
The complete absolute infinitissimal 3-D geometry through it full range of motions will not have every geometrical result absolutely mirrored with a taller A-arm even if everything else is changed.
BUT changes can be made to make the handling and overall resulting behavior the same. Because there are so many input varibles in suspension design, there are many different paths to take to get to the same place.
