Steering Pitman Arm - Shop Manual
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A comparison with this Mustang steering setup shows with the Pitman arm rotated to the rear 15 degrees, it has to travel an additional 2.84 degrees to get the same 8-inch movement of the drag link. Since the "work" done is less with the pull back for a right hand turn (3.86-inch divided by 32.84 degrees equeals 0.1175 inch/degree) than the LH turn (4.14 divided by 30 degrees equals 0.138 inch/degree) it would appear that angling the Pitman arm back produces unequal travel and effort (17 percent difference). View Related Article
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