Just to point out, the jaw size increase is from human growth hormone rather than steroids. I recall seeing photos of members of the Santa Monica track club athletes (Carl Lewis's club) and 7 out of 9 of their top sprinters had braces.
Either way its obviously a side note and even if my memory serves correct, that's not to say HGH doesn't have a similar effect.
They're all "horse steroids," generally, as veterinarians are a common source of grey/black market AAS. Winstrol was likely very common then, as was Deca-Durabolin and Trenbolone. Obviously good old-fashioned injectable Testosterone [insert ester here] was used as well.
As for HGH, I'm not sure it was all that common in the 80s, or really even now. The benefits for adult males are... dubious, to say the least; it's not like testosterone which we know how valuable it can be for athletic performance.
Also Winstrol and Test Propionate (or Suspension) have short detection times, HGH didn't have a test until recently, and EPO was in the same boat.
I'm going to guess that drug tested athletes in the 80s were probably taking advantage of testosterone suspension due to its short clearance time, and difficulty to detect. We can catch it now if we screen within ~3 days of the last injection.