Im experiencing vibration and/or tire wear. How much runout is allowed on my hub?
Up to .008 inch axial and radial flange runout is allowed relative to the axle. The wheel and drum pilots can be confirmed by measuring the outer flange since they are machined at the same time. During measurement the bearings must be set with zero endplay. The PreSet ® or LMS™ spacer between the bearings, if one is present, must be removed to accomplish this. Take care not to misalign the seal when the outer bearing cone is removed to access the spacer. Apply light torque to the spindle nut while rotating the hub to assure there is no endplay. When measuring radial runout, take readings between the wheel studs, as there will be a slight bulge in the flange near the studs. Make sure all surfaces are clean and in good, undamaged condition, or the resulting value could be in error. The gage should be mounted rigid relative to the spindle or to ground(See images). Hubs returned for warranty consideration with excessive runout from a manufacturing defect will be honored if the runout is ve
