Drive Pinion Flange and Drive Pinion Seal: Installation
WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Lubricate the new pinion seal.
- Use Premium Long-Life Grease XG-l-C or equivalent meeting Ford specification ESA-M1C75-B.
- Use the Pinion Seal Replacer to install the rear axle drive pinion seal.
- Lubricate the pinion flange splines.
- Use SAE 75W-140 Synthetic Rear Axle Lubricant F1TZ-19580-B or equivalent meeting Ford specification WSL-M2C192-A.
- Align the pinion flange with the drive pinion shaft.
- With the pinion flange in place in the rear axle housing, install the pinion flange using the Companion Flange Replacer.
- Position the new pinion nut.
- Use the Flange Holder to hold the pinion flange while tightening the pinion nut.
- Tighten the pinion nut, rotating the pinion occasionally to make sure the cone and roller bearings are seating properly. Take frequent cone and roller bearing torque preload readings until the original recorded preload reading is obtained by rotating the pinion with a Nm (inch-pound) torque wrench.
- If the original recorded preload is lower than specifications, tighten to the appropriate specification for used bearings. If the preload is higher than specification, tighten the nut to the original reading as recorded. Refer to SPECIFICATIONS .
- Install the driveshaft. Refer to DRIVESHAFT - EXCURSION & F250-F550 SUPER DUTY PICKUP .
- Install the brake calipers. Refer to DISC - EXCURSION, F250-F550 SUPER DUTY PICKUP .
CAUTION:
If the rear axle drive pinion seal becomes misaligned during installation, remove the rear axle drive pinion seal and replace it with a new seal.
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.