Drive Pinion: Disassembly
WARNING: This page is about a different car, the 2002 Ford F550 Super Duty and 2002 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the hex nut (4320).
- Using the special tool, remove the pinion flange.
- Remove the pinion seal (4676).
- Press the pinion through the outer pinion bearing, and remove the pinion.
- Remove the pinion preload spacer (4537).
- Measure and record the spacer thickness. Set the spacer aside for use in assembly.
- If reusing the gear set, remove the inner pinion bearing with a suitable puller.
- If discarding the pinion bearings, remove the outer and inner pinion bearing cups.
- Clean and dry the components as necessary.
- Inspect the pinion flange for grooves in the sealing surface caused by contamination.
- If grooves are detectable with a fingernail, repair the flange with a CR approved sleeve or install a new flange.
CAUTION:
Hammering on the pinion flange (4851) will close in the bearing bores and misalign the flange lugs. This will result in premature failure of the journal needle bearings/other driveline components. Serious damage will also occur internally to the differential ring gear and pinion set (4209)/pinion bearings (4261) (4630) by hammering on external parts. Remove and install the pinion flange using only the procedures in this section.
CAUTION:
Position a block of wood under the pinion to avoid damage to the gear teeth.
NOTE:
The outer bearing is press fit.
CAUTION:
Alkaline cleaning solutions will damage machine surfaces. Use only emulsion cleaners or petroleum based cleaning solvent.
CAUTION:
Use soft, clean, lintless towels to dry the components.
CAUTION:
Never spin-dry bearings with compressed air. This will damage the mating surfaces due to a lack of lubrication.
CAUTION:
After drying, lightly coat the parts with rust inhibitor or clean lubricant to prevent damage from corrosion. Wrap all parts that are going to be in storage for a prolonged period in wax paper.