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Cost Savings Guide
Kingpin Inclination (KPI)
Kingpin Inclination (KPI) is a designed alignment angle of typically five to six degrees from vertical.
If vehicle handling becomes a problem, the kingpin may be positioned at an angle other than standard,
suggesting a loose, worn pin, or a bent axle. If ignored, this condition could result in irregular
treadwear and severe steering and handling problems.
Alignment Tips
- Monthly visual checks for irregular treadwear patterns are suggested.
- Be aware of gradual changes in vehicle handling.
- KPI, bearing adjustment and other suspension elements should be checked
at regular intervals.
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