I don't think any of the early B bodies before 1967 had front or rear sway bars, I'm going to say the 1967 Dodge R/T and Plymouth GTX where the first B bodies to have front end sway bars
There was an anti-sway bar available for the early B body cars but it was rare. Police cars got them and maybe Taxi cabs. I think it was an option but not many people ordered it. I found one in a wrecking yard years ago and have it hanging on the wall.
