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King Pin


richie
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hey guys ..I read your posts on how to check for king pin wear but can someone tell me just how much slack is ok or is any slack not a good thing. when lifted with a bar the wheel moves very slightly but am wondering should it move at all or is a little ok ??

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hey guys ..I read your posts on how to check for king pin wear but can someone tell me just how much slack is ok or is any slack not a good thing. when lifted with a bar the wheel moves very slightly but am wondering should it move at all or is a little ok ??

Kingpin wear is measured with a dial indicator at the top and bottom of the spindle, parallel to the axle against the bushing/bearing bore. For a Mack FAW axle the total indicator travel (measurement from top bore plus measurement from bottom bore) should not be more than .015. I think for Rockwell/Meritor and Eaton axles the specification is .012"

"Mebbe I'm too ugly and stupid to give up!"

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Kingpin wear is measured with a dial indicator at the top and bottom of the spindle, parallel to the axle against the bushing/bearing bore. For a Mack FAW axle the total indicator travel (measurement from top bore plus measurement from bottom bore) should not be more than .015. I think for Rockwell/Meritor and Eaton axles the specification is .012"

By DOT limits here your allowed 3/16 at the bottom of the wheel tipping it with a bar! I would be more inclined to say 1/8 to be the maximum! Bare in mind to much wear can create unwanted tire wear!

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