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.
2017 Cadillac XTS BaseFACTORY OEM SERVICE PROCEDURE
Power Transfer Unit/Transfer Case - AAM
- Specifications
- Component Locator
- Diagnostic Information and Procedures
- Repair Instructions - On Vehicle
- Transfer Case Fluid Replacement
- Drain Plug Replacement
- Fill Plug Replacement
- Front Output Shaft Seal Replacement
- Front Wheel Drive Intermediate Shaft Replacement
- Rear Output Shaft Seal Replacement
- Intermediate Drive Shaft Dirt Deflector Replacement
- Front Wheel Drive Shaft Seal Replacement - Case Side
- Front Wheel Drive Intermediate Shaft Bearing Replacement
- Transfer Case Replacement (LFX Engine)
- Transfer Case Replacement (LF3 Engine)
- Repair Instructions - Off Vehicle
- Transfer Case Disassemble
- Oil Drain Plug Removal
- Oil Fill Plug Removal
- Transfer Case Vent Removal
- Transfer Case-to-Transmission Seal Removal
- Front Wheel Drive Intermediate Shaft Removal
- Front Wheel Drive Intermediate Shaft Bearing Removal
- Rear Output Shaft Seal Removal
- Rear Output Shaft Housing Removal
- Rear Extension Housing Removal
- Input Shaft and Idler Shaft Removal
- Input Shaft Bearing Retainer Front Seals Removal
- Input Shaft Bearing Retainer Rear Seal Removal
- Front Wheel Drive Intermediate Shaft Seal Removal
- Transfer Case Cleaning and Inspection
- Transfer Case Assemble
- Front Wheel Drive Intermediate Shaft Seal Installation
- Input Shaft Bearing Retainer Rear Seal Installation
- Input Shaft Bearing Retainer Front Seals Installation
- Input Shaft and Idler Gear Installation
- Rear Extension Housing Installation
- Rear Output Shaft Seal Installation
- Front Wheel Drive Intermediate Shaft Bearing Installation
- Front Wheel Drive Intermediate Shaft Installation
- Transfer Case-to-Transmission Seal Installation
- Transfer Case Vent Installation
- Oil Drain Plug Installation
- Oil Fill Plug Installation
- Transfer Case Disassemble
- Description and Operation
- Special Tools and Equipment
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.