I replaced my upper and lower ball joints yesterday with new Moog parts. Did the job completely by myself in about 5 hours. 3 of which were spent on one side figuring things out. It's a real b*#!h to do with no helper, but I learned a few things that made it much easier on the second side. I had a pitman arm puller, but my ball joints came off easily with a couple whacks with a hammer to the knuckle, so I didn't need it. In that 5 hours I also tightened up all of the exhaust manifold nuts and fixed my exhaust leak, and cranked my T-bars 2 full rotations on each side. The front end was sitting a little lower than the back, now it sits much nicer. So my question is, is it absolutely necessary to get an alignment done now that i've replaced the ball joints? It seems to ride perfectly fine.