General Comments
It is good practice, for any chassis that will see a driveline modification, to measure and record the driveline angles for the following vehicle configurations for later comparison, and assurance for meeting the guidelines in this bulletin when the vehicle is completed:
a. Chassis as first received from the Ford assembly plant (make note that the angles may not conform exactly to this bulletin when incomplete).
b. Completed vehicle, unloaded
c. Completed vehicle, loaded to GVW, Maximum Front GAWR
d. Completed vehicle, loaded to GVW, Maximum Rear GAWR
DO NOT over-torque the U-joint fasteners. It distorts the end caps, causing premature joint failure. The Ford Light Truck Shop Manual indicates the torque ranges to use for the various joints.