It pays off big time, to set this shit up right in advance. The tube end inserts are free to float around the wheel-side and chassis-side ball joints, and then are mated so they are coaxial. The actual individual tubes that comprise each a-arm are made to automatically generate at the right length between the chassis-side and wheel-side insert. That way you can change static camber, ride height, track width, whatever... and all the a-arms regenerate to the exact appropriate size. In theory anyway, assuming the heap of mates that comprise the thing don't all explode, as they have a tendency of doing.
The tube inserts are my own design, rather than the stuff you'd buy at Chassis Shop. The latter are decent, but don't have flats machined on them for a wrench to tighten up the jam nuts, and are kind of a loose fit in the actual tubes. Mine also have a nice 0.050" chamfer on them for a J-bevel weld, or full bevel if I chamfer the end of the tube as well.
Yes, that does put the IC (instant center) at an interesting location. But that may be exactly what I want. If not, it's easy enough to change. Again, in theory if I change the chassis points everything should auto update. For now, I'm gonna pass the hell out.
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