Final Drive Carrier and Differential Assembly: Disassembly

Inspect the differential for wear or damage. Install new components as required.

CAUTION: Do not disassemble the planet carrier.

NOTE: If the measurement exceeds specification, install a new complete final drive carrier. If the measurement is within specification, continue with the diagnostic procedure.

Measure the final drive planet gear end play with a feeler gauge.

Fig 1: Measuring Final Drive Planet Gear End Play With Feeler Gauge

Courtesy of FORD MOTOR CO.

NOTE: Do not remove the final drive pinion shaft retaining ring.

Remove the differential pinion shaft.
1. Remove the pinion shaft roll pin.
2. Remove the differential pinion shaft.

Fig 2: Identifying Differential Pinion Shaft & Pinion Shaft Roll Pin

Courtesy of FORD MOTOR CO.

Remove the pinion gears and thrust washers.
- Turn the differential pinion gears 90 degrees and remove.

Fig 3: Locating Differential Pinion Gears & Thrust Washers

Courtesy of FORD MOTOR CO.

Remove the differential side gears and differential side gear thrust washers.

Fig 4: Identifying Differential Side Gears & Differential Side Gear Thrust Washers

Courtesy of FORD MOTOR CO.

Clean all parts thoroughly in clean solvent and blow dry with moisture-free regulated compressed air.
Inspect the differential parts for damage and wear.
- Gear teeth
- Thrust washer surface
- Thrust bearing surface
- Pinion shaft
Inspect the final drive planet and carrier.
1. Pinion gear teeth
2. Thrust bearing surfaces
3. Bushing surfaces

Fig 5: Inspecting Final Drive Planet And Carrier

Courtesy of FORD MOTOR CO.