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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Wheels & Tires) >> Diagnosis And Testing >> Wheels And Tires >> Component Tests >> Radial Runout

Radial Runout

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Radial runout is the egg-shaped deviation from a perfect circle and is measured perpendicular to the circumference. On a wheel and tire assembly, this means measuring the center tire tread rib. The center rib is indicative of the condition of the tire as a whole. Total runout is the difference between the maximum-to-minimum gauge reading. The high spot is the location of maximum runout.

Fig 1: Identifying High And Low Spot
G06094318Courtesy of FORD MOTOR CO.
Item Description
1 High spot
2 Low spot