Mine was too, the speed wobble was never an issue because who drives at 55 in 4wd/FWD anyways? I mean I had taken it up to those speeds but I am stupid/crazy and still thought it was a bad idea.
I think you will be fine running the shaft. It looks a hell of a lot better than the one that was on my last 60. I crushed mine on a rock and rewelded I think a Ford shaft since it was the same diameter. It was not really close to straight (you could see the uneven rotation easily) however I...