gbauer,
IIRC, if you have the wrong secondary rod it wont physically work right. So, U might not need to tear (pun intended) it apart. Just operate it by hand, if it seems smooth and stays open when you cover the signal hole[s] (you have to pull the lower throttle body to do that though) it should be fine

Try it on the road, with a paper clip on the rod. See how far its opening as a function of RPM. Easy test to do, then you know for sure.