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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 871 (Driveline System - General Information) >> General Procedures >> Driveline Angle Measurement >> All vehicles

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WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
  1. Carry out the following preliminary setup steps:
    • Inspect the U-joints for correct operation.
    • Park the vehicle on a level surface such as a drive-on hoist, or back onto a front end alignment rack.
    • Verify the curb position ride height is within specifications with the vehicle unloaded and all of the tires are inflated to their normal operating pressures.
    • Calibrate the special tool by placing the tool on a clean, flat level section of the frame rail and press the ALT-ZERO button.


    NOTE: When 2 connected components slope in the same direction, subtract the smallest number from the larger number to find the U-joint operating angle. When 2 connected components slope in the opposite direction, add the measurements to find the U-joint operating angle.
  1. Calculate the difference in the slope of the components to determine the U-joint operating angle.
    • The U-joint operating angle is the angle formed by 2 yokes connected by a cross and bearing kit. Ideally, the operating angles on each connection of the driveshaft must:
      • be equal or within 1 degree of each other.
      • have a 3 degree maximum operating angle.
      • have at least 1/2 of 1 degree continuous operating angle.
  2. If the angle is not within specifications, repair or adjust to obtain the correct angle. Inspect the engine mounts, transmission mounts, center support bearing mounting, rear suspension, rear axle, rear axle mounting or the frame for wear or damage.