Here is some information that we think will help you understand wheel alignment and assoicated problems.
Inward tile of spindle support arm or king pin at the top. Directional control angle measured in degrees that spindle support center line is tilted from true vertical.
Non-adjustable angle that, with camber, controls "scrub radius" to minimize effects of road bumps on steering.
Rapid tire wear can result from mounting new wheels with different offset that may increase scrub radius by moving tire footprint outside projected pivot point.
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