Working on my project and getting stripped down to nothing but frame... and I pulled the rear axle assembly off which I have already replaced the spring, shackles, etc. I notice on both of the rear shackles (zero miles) that the center line for the two threaded parts are not parallel? Is that intentional or another Omix quality product? How far out... with the bottom in alignment with each other the top is about an 1/8" out :-? ... same direction for both. Time to punt and get some better products? :-/ Thank you