does anyone use the plus 3 upper control arms for the street, and are roller perches worth it. Does anyone run both
global wests tech department said new lower holes must be drilled, I asked if it would change the ride height he said no, how can that be if your lowering the arm, he didn't explain he just guaranteed the ride height would be the same?
There's a good chance that Global West has engineered the arms so the change in mounting location doesn't change the height. That could easily be done with placing the mounts for the spring perch farther off the arm. Even if you do it to stock arms my understanding is it doesn't change the height much.
Roller perches are smoother operating, I use street or track upper arms. The perch mount appears a little bit higher on them than the stock arms in relation to the pivot. That would likely offset any drop in suspension height from lowering the UCA mount. I did notice that when I installed them it actually raised the front end up almost 1/2" from where I had it. Annoying mainly because I liked the stance. I'm going to lower it as soon as I can. I actually had to redrill the holes slightly higher than I had them since I originally had the most aggressive Arning drop at 2" below stock. The instructions for the tubular arms dropped the pivot holes approximately 1 1/2"
