What Is Wrong With My Suspension?

I drive a 1990 Mazda 323 with about 220K miles. I do all the engine work myself, but when it comes to suspension, I need a little advice. When I turn left and hit bumps, my car makes almost this popping noise from the right side near the strut. It doesn’t happen every time, but mostly when I hit railroad tracks or steep inclines into driveways. In the past 6 months or so I have replaced both CV shafts, struts, tie rod ends, and the breaks are new, calipers and all. Also, I got my car aligned and all the lights were green, but my car still pulls to the right slightly. I don’t know whether it is more likely the strut mount, or the wheel bearings or something else entirely. Any ideas? Thanks for your help.