Massive caster variance Side to side

Lock the brakes? I did not. How would
This effecti t tho? To give me +1.5 driver side caster and - 3 pass side caster. Afaik. The tool use by the shops is to lock the wheel im the center position..but i could be wrong abouth that… maybe k frame is tilted ill try that
You cannot get a measurement on caster with the brakes not locked. Caster measures the arc that the spindle makes during the caster turn. If the brakes are unlocked, there's no way to get an accurate measurement. The wheel rotating on the spindle will greatly affect any measurement you get.