Ron, dropping the front of the car reduced positive caster, not much, not enough to cause the problem you describe by itself, but a tick.
I noticed this in the '70s. NASCAR didn't allow spoilers, and competitors raised the rear end until a burro could walk under without lowering his ears. Half the kids driving a RoadRunner or Charger on the street did the same, without a thought to realigning the front end.
It was comical (though very scary) to see them drive a normal road. They darted left or right as if they were evading an Ali jab.
(They also didn't change brake bias, and a faster than normal stop usually locked the rear wheels and skidded the rear end into an adjoining traffic lane.)
That's the dumb things 'they' did. I'm not gonna tell ya the dumb things I did!
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