Removal And Installation

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Before servicing a vehicle equipped with a fire suppression system, depower the system by following the procedure in FIRE SUPPRESSION SYSTEM article. Failure to follow the instructions may result in serious personal injury.

With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING article.
Index-mark the rear axle pinion flange and the driveshaft centering socket yoke.

Fig 1: Marking Driveshaft Flange And Pinion Flange

Courtesy of FORD MOTOR CO.

Index-mark the transmission extension housing and driveshaft tube.

Fig 2: Identifying Index-Mark On Driveshaft And Transmission Extension Housing

Courtesy of FORD MOTOR CO.

Remove and discard the 4 bolts.
- To install, tighten to 112 Nm (83 lb-ft).

Fig 3: Driveshaft Flange Bolts

Courtesy of FORD MOTOR CO.

NOTE: The driveshaft centering socket yoke fits tightly on the rear axle pinion flange pilot. Never hammer on the driveshaft or any of its components to disconnect the yoke from the flange. Pry only in the area shown in illustration, with a suitable tool, to disconnect the yoke from the flange.

Using a suitable tool as shown in illustration, disconnect the driveshaft centering socket yoke from the rear axle pinion flange.

Fig 4: Disconnecting Driveshaft Flange Yoke From Pinion Flange

Courtesy of FORD MOTOR CO.

NOTE: Align index marks before removing the driveshaft.

Lower the rear end of the driveshaft to clear the rear axle housing. Pull the driveshaft rearward until the driveshaft slip yoke clears the transmission extension housing.
- Plug the extension housing to prevent fluid loss.

NOTE: The driveshaft centering socket yoke fits tightly on the rear axle pinion flange pilot. To make sure that the yoke seats squarely on the flange, tighten the bolts evenly in a cross pattern.

NOTE: Lubricate the slip-yoke spline with long-life grease.

NOTE: If, after installing a new driveshaft, a vibration is encountered, align the factory-made yellow paint mark at the rear of the driveshaft tube with the factory-made yellow paint mark on the rear axle pinion flange. If the paint marks are not visible, refer to DRIVELINE SYSTEM - GENERAL INFORMATION article for driveshaft balancing.

NOTE: Inspect the mating surfaces on the rear axle pinion flange and the driveshaft centering socket yoke for foreign material and for damage from nicks or burrs that could prevent the flanges from fitting tightly together. Repair damaged areas or install new components as necessary to make sure a tight fit is obtained.

To install, reverse the removal procedure.

Fig 5: Locating Bolts On Driveshaft

Courtesy of FORD MOTOR CO.

WARNING: If the vehicle is equipped with a fire suppression system, repower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM article. Failure to follow these instructions may result in serious personal injury.

Repower the fire suppression system.