How much fluid does a Toyota Tundra rear differential hold?
The rear differential on most Toyota Tundra models holds about 2.6 quarts (roughly 2.5 liters) of gear oil. The exact amount can vary by year, axle code, and whether the differential is standard, limited-slip, or electronically locking—so always check the specific specification for your truck in the manual or on the axle tag.
Understanding the capacity is important for proper maintenance and avoiding under- or over-filling, which can affect differential performance and longevity. Here’s what you need to know about how much fluid it holds and how to service it correctly.
Capacity and axle variations
Before reviewing the typical numbers, note that the amount can differ by axle configuration and generation. The numbers below reflect common figures you may encounter in manuals and service databases.
- Typical open-rear-differential capacity: about 2.6 quarts (2.5 L).
- With a limited-slip or locking differential, practical capacity you’ll service may be closer to 2.8–3.0 quarts depending on the model year and exact axle setup.
- In some rare setups or after certain repairs (for example, aftermarket lockers or deep-dish axles), capacity can vary; always confirm from the drivetrain spec sticker or owner's manual.
Consult the official documentation for your exact vehicle to confirm the correct fill capacity and lubricant specifications for your axle code.
Filling and checking the fluid
To maintain correct levels, use the recommended lubricant and fill until the fluid is at the edge of the fill hole. The standard procedure on many Tundra models is to fill via the fill plug until gear oil begins to seep out, then reinstall the plug. Do this with the vehicle on level ground and the differential warm but not hot for the most accurate reading.
- Park on level ground and engage the parking brake.
- Clean the fill plug area and remove the fill plug to vent air.
- With the truck warm (driven a short distance), add gear oil through the fill hole until it seeps out, then stop and reinstall the fill plug.
- Replace the drain plug if doing a full drain-and-fill, and wipe away any spills.
After filling, recheck for leaks and torque the plugs to the manufacturer’s specification. Always use the lubricant type recommended by Toyota (typically GL-5 gear oil such as 75W-90), as specified in the owner’s manual.
Where to find the exact specification
The most reliable source is your owner's manual or the axle tag on the differential housing, which lists the exact capacity and the required lubricant specification (brand, viscosity, and whether synthetic is recommended). If in doubt, a Toyota dealership or qualified mechanic can confirm the correct capacity for your specific Tundra configuration.
Summary for quick reference
As a quick takeaway, plan on roughly 2.6 quarts of gear oil for a standard rear differential on a Toyota Tundra, with up to about 3.0 quarts if the axle includes a limited-slip or locking mechanism. Confirm the exact figure for your year and axle code, and always fill to the proper level using the fill hole.
Summary: The exact fluid capacity depends on the axle type and year. Use the owner's manual or axle tag to confirm. For routine maintenance, expect about 2.6 quarts, but be prepared for up to 3.0 quarts in certain configurations. Regular checks help ensure optimal performance of your Tundra's rear differential.
How many quarts to fill rear differential fluid?
Take. So it's typically be about 3.3 to 3.6 quarts uh depending on whether or not it's electronic or not electronic. If it is electronic would be on the lower side your 3.3 to 3.4.
What kind of gear Oil does a 2017 Toyota Tundra take?
Penzoil 80W90 conventional gear Oil.
What kind of rear diff fluid does a 2007 Toyota Tundra take?
2nd Generation XK50 Toyota Tundra (2007-2021)
The gear oil part number is 08885-02906, and the previous 08885-02506. Some may still choose to use alternative viscosity gear oils in the Toyota Tundra rear differential even though a 75W-85 GL-5 gear oil is specified for the 2007-2021 Toyota Tundra rear differential.
What kind of fluid does a Toyota rear differential take?
Using the suggested Toyota Tacoma 75W85 GL5 gear oil will ensure the correct rear differential lubricating characteristics are met for the intended differential designed functions. Also, you can expect to achieve the best performance results and long-term reliability for all internal rear differential components.
