70-72 valiant lower ball joints

Trying to replace the lower ball joints on the 71 valiant and the parts store seems to be struggling to get the correct part. The ones they sent they are calling for a 70-72 disc brake car, but the holes that bolt it to the spindle are 1/2" and not 9/16" the end tips up like 30 degrees and to the side not coming out more flat and straight on the shaft that bolts to the tie rod end. I'll get some pics here shortly. Thanks.