I do axle housing straightening as part of axle building biz, most times when the long side is bent, if not too severe, with my jigging system I can repair them and they last, more severly bent housings need trussing after straightening, but after doing this sort of work for over 5 years, I can tell you for a fact if you bent the short side to the point that you can see it and have seals leaking, the center section is bent too.
Toss the whole housing, and get a new one.

SD