Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2009MOUNTAINEER 4.6 8, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 5 (TRANSFER CASE)DISASSEMBLY AND ASSEMBLYTRANSFER CASE - ALL-WHEEL DRIVE (AWD)NOTES
2009 Mercury Mountaineer 4.6 8, RWD
Transfer Case - All-Wheel Drive (AWD): Notes
2009 Mercury Mountaineer 4.6 8, RWDSECTION Notes
WARNING: This page is about a different variant/trim than selected.
Special Tools
| Illustration | Tool Name | Tool Number |
|---|---|---|
| Remover, Bearing Cup | 308-047 (T77F-1102-A) | |
| Installer, Wheel Hub Bearing Cup | 204-020 (T73T-1202-A) | |
| Puller, Bearing | 205-D064 (D84L-1123-A) | |
| Remover, Stator Bearing | 307-318 (T94P-77001-KH) | |
| Holding Fixture, Drive Pinion Flange | 205-126 (T78P-4851-A) | |
| Adapter for 303-224 (Handle) | 205-153 (T80T-4000-W) | |
| Holding Fixture, Transmission | 307-003 (T57L-500-B) | |
| Slide Hammer | 100-001 (T50T-100-A) | |
| Installer, Front Pump Fluid Seal | 307-184 (T87L-77248-AH) | |
| Installer, Differential Bearing Cup | 308-163 (T88C-77000-FH) | |
| Remover/Installer, Bearing Tube | 308-024 (T75L-7025-B) |
Material
| Item | Specification |
|---|---|
| Silicone Gasket and Sealant TA-30 |
WSE-M4G323-A4 |
| Motorcraft Transfer Case Fluid XL-12 |
ESP-M2C166-H |
| Item | Part Number | Description |
|---|---|---|
| 1 | 7005 | Transfer case |
| 2 | 7B215 | Input shaft seal |
| 3 | 7061 | Output shaft |
| 4 | 7B215 | Yoke-to-flange seal |
| 5 | 7025 | Bearing |
| 6 | 7917 | Snap ring |
| 7 | 7A029 | Drive chains |
| 8 | 7177 | Lower drive sprocket |
| 9 | - | Spacer |
| 10 | 7025 | Bearing |
| 11 | 7F123 | Damper snubber |
| 12 | 7A771 | Torx® head screws (4 required) |
| 13 | 7005 | Transfer case |
| 14 | 7025 | Bearing |
| 15 | 7B215 | Yoke-to-flange seal |
| 16 | 7052 | Oil seal |
| 17 | 7B214 | Output flange |
| 18 | 7B368 | Output shaft yoke washer |
| 19 | 7045 | Output flange nut |
| 20 | 7917 | Snap ring |
| 21 | 7R141 | Snap ring |
| 22 | 7025 | Bearing |
| 23 | 7061 | Upper output shaft |
| 24 | - | Sungear |
| 25 | - | Planetary gear |
| 26 | - | Thrust washer |
| 27 | - | Sungear |
| 28 | - | Upper drive sprocket |
| 29 | 7017 | Input shaft assembly |
| 30 | 7025 | Input shaft bearing |
| 31 | 7A443 | Transfer case bolt (17 required) |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.