Protect Your Drivetrain & Ensure Smooth Power Transfer

Your vehicle’s differential and transfer case are vital for distributing power to the wheels efficiently. Over time, fluid breaks down due to heat and contaminants, causing increased wear, reduced efficiency, and potential damage. At NorTech, we provide professional fluid changes, inspections, and preventive care to keep your drivetrain performing at its best.

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Keep Your Wheels Turning. Reduce Wear. Drive Confidently.

Our Drivetrain Services

Differential Fluid Change

Includes:
Draining old gear oil, inspecting for metal shavings or wear, and refilling with OEM-specified fluid to maintain smooth operation.

When Needed:
Every 30,000–60,000 miles, or sooner with towing or off-road use.

Benefits:

  • Reduces gear wear and overheating
  • Ensures quiet, smooth operation
  • Protects critical drivetrain components

Transfer Case Fluid Replacement

Includes:
Replacing old transfer case fluid, inspecting seals and gaskets, and refilling with manufacturer-approved fluid for optimal AWD/4WD performance.

When Needed:
Every 30,000–60,000 miles depending on vehicle and driving conditions.

Benefits:

  • Protects transfer gears from wear
  • Maintains smooth AWD/4WD engagement
  • Prevents costly damage from degraded fluid

Wear & Contamination Inspection

Includes:
Checking for metal particles, sludge, or fluid discoloration that could signal gear or bearing wear.

When Needed:
During routine maintenance or if unusual noises or vibrations occur.

Benefits:

  • Early detection of drivetrain issues
  • Prevents costly repairs
  • Ensures consistent performance

Seal & Gasket Inspection

Includes:
Examining differential and transfer case seals and gaskets to prevent leaks and fluid loss.

When Needed:
Every service interval or when leaks are suspected.

Benefits:

  • Maintains proper lubrication
  • Reduces risk of overheating or gear damage
  • Ensures long-term reliability

Drivetrain Performance Testing

Includes:
Evaluating responsiveness, smoothness, and efficiency after fluid service to confirm optimal operation.

When Needed:
After fluid changes or if performance issues are noticed.

Benefits:

  • Verifies smooth power transfer
  • Detects early drivetrain problems
  • Enhances handling and traction

Differential vs. Transfer Case Fluid Service

FeatureDifferential Fluid ServiceTransfer Case Fluid Service
PurposeLubricates gears allowing wheels to rotate at different speedsDistributes power between front and rear axles in AWD/4WD vehicles
When NeededEvery 30k–60k miles or sooner with towing/off-roadingEvery 30k–60k miles depending on vehicle and use
ProcessDrain old gear oil, inspect for metal shavings, refill with OEM fluidDrain old fluid, inspect seals/gaskets, refill with manufacturer-specified fluid
BenefitsReduces gear wear, prevents overheating, ensures quiet operationProtects transfer gears, ensures smooth AWD/4WD engagement
Average Cost$100–$200 per differential$120–$250 per transfer case
Service Time1 hour per differential1–1.5 hours
When to ChooseSigns of whining, grinding, or leaksIssues with shifting into AWD/4WD, leaks, or heavy use

Signs You Need Fluid Service

Whining or grinding noises from the drivetrain
Difficulty shifting into four-wheel drive
Slipping or delayed power transfer
Fluid leaks near the differential or transfer case
Reduced traction or unusual drivetrain vibrations

Maintenance Tips for Differentials & Transfer Cases:

Change Fluid Every 15,000–25,000 Miles – Follow manufacturer recommendations for optimal performance.
Monitor for Unusual Noises or Vibrations – Early signs of drivetrain wear often come from audible or tactile feedback.
Inspect for Leaks Periodically – Fluid loss can lead to overheating and potential gear damage.
Use Manufacturer-Specified Fluids – Ensures proper lubrication and system compatibility.
Avoid Excessive Off-Roading Without Maintenance – Extreme conditions accelerate wear and require more frequent fluid replacements.

Your differential and transfer case are essential for delivering power smoothly and efficiently to your wheels, especially in AWD and 4WD systems. Over time, fluid can degrade, leading to excess friction, overheating, and premature gear wear. A professional fluid flush and replacement ensures proper lubrication, extends component life, and keeps your drivetrain operating at peak performance. Whether tackling rough terrain or daily drives, clean, high-quality fluid helps maintain stability, responsiveness, and long-term reliability. Keep your drivetrain running strong—schedule your service today!

Keep Your Drivetrain Running Strong

Proper maintenance ensures reliable traction, smooth gear transitions, and reduced component wear. Whether routine fluid changes or full inspections, NorTech provides expert service for lasting drivetrain performance.

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✔️ Complete Fluid Replacement for Front, Rear Differential & Transfer Case | ✔️ Removal of Metal Particles, Sludge & Moisture That Cause Wear | ✔️ Refill With OEM-Specified Gear Oils or Synthetic Fluids | ✔️ Extended Component Life, Smoother Handling & Reduced Noise or Vibration

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