The 1996 Chevy Silverado requires 75W-90 synthetic gear oil for its rear differential. This fluid type provides optimal protection and performance for the vehicle's drivetrain components. When changing the rear differential fluid, it's important to use the correct type and amount to ensure proper lubrication and longevity of the differential.

Fluid Specifications

  • Type: 75W-90 synthetic gear oil
  • Capacity: Approximately 2-2.5 quarts
  • Additive: Limited slip additive may be required

It's crucial to use a high-quality synthetic gear oil to protect the gears and bearings in your Silverado's rear differential. Synthetic oil offers better performance in extreme temperatures and provides superior wear protection compared to conventional oils.

Changing Procedure

1. Raise and support the vehicle securely

2. Place a drain pan under the differential

3. Remove the fill plug first

4. Remove the drain plug and allow fluid to drain completely

5. Clean and reinstall the drain plug

6. Refill with new 75W-90 synthetic gear oil

7. Replace the fill plug when fluid begins to seep out

When refilling, it's important to fill slowly and check the level frequently to avoid overfilling. The correct level is when the fluid just begins to drip from the fill hole when the vehicle is level.

Additional Considerations

If your 1996 Chevy Silverado has a limited-slip differential, you may need to add a limited-slip additive to the gear oil. Check your owner's manual or the differential cover for a tag indicating if it's a limited-slip unit.

Regular maintenance of your rear differential, including fluid changes, can significantly extend the life of your drivetrain components and ensure optimal performance of your Silverado.

FAQs About 1996 Chevy Silverado Rear Differential Fluid

    • How often should I change the rear differential fluid?
      It's generally recommended to change the fluid every 30,000 to 50,000 miles, or as specified in your owner's manual.
    • Can I use non-synthetic gear oil?
      While conventional oil can be used, synthetic oil is highly recommended for its superior protection and performance.
    • How do I know if my Silverado has a limited-slip differential?
      Check the glove box for a sticker with RPO codes. Code G80 indicates a limited-slip differential.