Which power steering box to use??

Some information from my experience. I purchased a Cardone unit from RockAuto and have found this anomaly. My car is a 1969 Barracuda 340 Formula S. Suspension is stock. Steering gear is supposed to have the smaller 1 1/8" sector shaft and associated pitman arm. In the process of chasing down alignment/steering feel issues, the alignment technician concluded I have the incorrect steering gear (as evidenced by the larger 1 1/4" sector shaft on the installed steering gear). I am aware that if you want to convert a pre '72 A-body to '73 and later steering gear, you must change all the associated links and arms to preserve steering geomtry. My inquiry to Cardone revealed that what I received from them is a "conversion" steering gear. Basically from what I can gather, they sourced and supplied a pitman arm that fits the large sector shaft and matches the geometry of the smaller stock pitman arm. They could not provide me a part number for said pitman arm but assured me the set up had passed in car testing. The service manual states the center link must be parallel to the ground. Due to the fact the larger sector shaft is also slightly longer than the smaller sector shaft, my center link sits 1/4" lower on the pitman arm side than the idler arm side. My plan is to replace my worn strut arm bushings, lower control arm bushings and idler arm, get the car aligned and then determine how much bearing this center link geometry issue has on my steering/feel before I decide what to do with this steering gear (rebuild quality seems fine).
Long story short, RockAuto has awesome prices but be aware that the vendors rebuilding some of these parts seem to be taking liberties as the core supply dwindles.