Adjustable upper control arm

Ok so I have an spc upper control arm with a disk brake conversion kit. Thing is... no matter how I adjust it doesn't want to mate up to the spindle properly. Is it something I have installed wrong or just the wrong uca which will suck because they weren't cheap and bought years ago. I do have a set of large ball joint uppers I can switch into. I thought these would assist with a good alignment for radial tires. Thanks