Drive Pinion Flange: Installation
WARNING: This page is about a different car, the 2002 Ford RV Cutaway, 2002 Ford Econoline, 2002 Ford E550 Super Duty, 2002 Ford E450 Super Duty, and 2002 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Lubricate the pinion flange splines.
- Use SAE 75W-140 High Performance Rear Axle Lubricant FITZ-19580-B or equivalent meeting Ford specification WSL-M2C192-A.
- Align the pinion flange with the drive pinion shaft.
- With the drive pinion in place in the rear axle housing (4010), install the pinion flange using the special tool.
- Position the new pinion nut.
- Using the special tool to hold the pinion flange, tighten the pinion nut.
- Rotate the pinion occasionally to make sure the cone and roller bearings are seating correctly.
- Install a Nm (inch-pound) torque wrench on the pinion nut.
- Rotating the pinion through several revolutions, take frequent cone and roller bearing torque preload readings until the original recorded preload reading is obtained.
- If the original recorded preload is lower than specifications, tighten to the appropriate specifications for used bearings. If the preload is higher than specification, tighten the nut to the original reading as recorded. For additional information, refer to TORQUE SPECIFICATIONS .
- Position the rear driveshaft and align the marks on the pinion flange.
- Install the bolts and tighten to specification.
- Install the brake drums. For additional information, refer to DISC & DRUM .
- Install the rear wheel and tire assemblies. For additional information, refer to WHEELS & TIRES .
NOTE:
Disregard the scribe marks if a new pinion flange is being installed.
CAUTION:
Under no circumstances is the pinion nut to be backed off to reduce preload. If reduced preload is required, a new collapsible spacer and pinion nut must be installed.
CAUTION:
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 as shown.