After the 3800 swap I had the car aligned. Now after a few weeks and 300 miles it feels "wishy washy" car wiggles a little as you drive. Almost like it's really windy out side. Also the steering wheel used to be straight (9 & 3) now the left side is at 10 and the right at 4. For a few miles if I turned right the wheel would correct its' self. I went under car and looked around, nothing clunking or banging. What could this be?? I don't want to order something I don't need. Also want to do most work myself before hitting up the local STS shop.
I agree, something slipped on the alignment. I had the same trouble with my 88 GT for a few years. I kept getting it aligned and it kept going out of alignment. I don't know if you have an 88 or not, but if you do before you get it aligned again, buy some of Rodney Dickmans paddle nuts and bolts for the upper A-Arms. These nuts are slightly compressed and will not back off.
Today I tightened all 4 cradle bolts and both axel bolts. None of them were loose. I did notice a "little" bit of play in the rear pass wheel. Tomorrow i'll replace that bearing. I also replaced the front shocks. The driver one was fine. The Pass one was DONE!! Car drove a little bit better. Gotta replace the rear struts also. Then go directly and get the alignment done again.