Driveline Angle Correction

Engine Angle Adjustments

The engine angle is adjusted by normalizing the engine mounts. The engine mounts are normalized by operating the engine until normal operating temperature is obtained. Stop the engine and loosen but DO NOT REMOVE the engine and transmission mount fasteners. Operate the engine at curb idle and place the transmission in Drive or first gear and then stop the engine. Tighten all fasteners to the specified torque. Recheck the engine angle, if the angle is still out of specification, place shims under the transmission to rear crossmember mount until the specified angle is obtained. If the engine transmission angle is still out of specification, place shims under the transmission to rear crossmember mount until the specified angle is obtained.

Coupling Shaft Angle Adjustment

Check coupling shaft angle (if so equipped) and adjust to specification by shimming the center support bearing. Refer to center support Bearing Shimming in the Two Piece Driveshaft Service portion. Two-Piece Driveshaft Service

Driveshaft and Pinion Angle Adjustment

Check the driveshaft angle and adjust to specifications by shimming between the rear springs and the spring seats.

Adjust the pinion angle by placing tapered shims between the springs and spring seats. On F-150, a 63.5 mm (2 1/2 inch) wide shim (Part No. C3TZ-5A313-A or equivalent) is available for a 2° change. On E-150 and Bronco, a 63.5mm (2 1/2 inch) wide shim (Part No. C3TZ-5A31 3-E or equivalent) is available for a 3° change. On E-250-E-350, F-250-F-350, and F-Super Duty, a 76.2mm (3 inch) wide shim (Part No. C6TZ-5A313-B or equivalent) is available for a 3° change.