Hey guys, i'm trying to measure the roll center for the rear suspension but i'm a little confused. The front was pretty straight forward for me, but the rear is slightly different.



The rear suspension has two lower control arms attaching to the knuckle. One is used to adjust toe, the other one acts as the shock perch. When measuring the pivot points, do i simply measure the one that acts as the shock perch and ignore the other control arm (since it acts like a tie rod?)

Is it correct to assume the trailing arm has no effect on roll center as well?