Sway bar

With 2 degrees of positive caster...it should...sounds like you got that one dialed in. Most all the earlier cars listed in this are 66 and earlier...they did not have much in positive caster except if you had power steering...manual was more neutral with a call for negative caster for ease of steering....this is a trade off for momma getting groceries and hauling the crib crawlers around. By the time your car was built, more and more units were coming from the factory with power steering and thus the added caster is more the norm.