Toyota Tundra Rear Differential Fluid Change XK50

This blog article provides the necessary steps and information on how to change the rear differential gear oil on 2007 - 2021 Toyota Tundra XK50 models. We will also discuss the correct Toyota Tundra rear differential fluid type specifications, the change interval, proper fluid capacity, and why changing your Toyota Tundra rear differential fluid is so important.

XK50 Toyota Tundra Rear Differential Fluid Change Info

This rear Toyota Tundra differential gear oil change procedures apply to models as listed below:

  • 2007 - 2021 Toyota Tundra 5.7L V8 models
  • 2010 - 2019 Toyota Tundra 4.6L V8 models
  • 2007 - 2012 Toyota Tundra 4.0L V6 models

Toyota Tundra Rear Differential Fluid Change Interval

When should you change your Toyota Tundra rear differential fluid? While it's always best to follow the manufacturers' recommendations, changing the Tundra gear oil every 50,000 miles to 60,000 miles should be acceptable under usual driving conditions. However, if your truck experiences more aggressive driving, full-time/consistent 4WD engagement, off-roading, and/or frequent trailer pulling, servicing the differential fluids more frequently—like every 30,000 miles—would be recommended. Also, if using a cheaper, non-synthetic brand of fluid, the differential fluid will need to be changed more often. Following the recommended Toyota Tundra rear differential fluid change intervals and the recommendations noted here can eliminate and minimize mechanical issues and costly differential repairs.

Why Should Toyota Tundra Rear Differential Fluid Gear Oil Be Changed?

Your rear Toyota Tundra differential has a good amount of moving internal components. This includes bearings, pinion gears, and crown gears. These internal components rely solely on the differential fluid's lubrication film strength for protection and longevity. The diff fluid experiences excessive shear loads and various heat cycles through use. In time, these heat cycles and extreme loads deplete the differential fluid's lubricating properties and film strength. Continued use of old differential fluid will result in differential bearing, pinion gear wear, and failure. Therefore, having regular rear differential fluid changes is essential. Changing your Toyota Tundra rear differential fluid as routine maintenance will significantly extend the life of the differential, minimize driveline noises due to wear, and ensure the bearings and gears receive reliable, clean lubrication.

Toyota Tundra Rear Differential Fluid Specifications

NOTE: Currently from our information all Toyota Tundra rear differential gear oil recommendations regardless of trim package recommend the LT gear oil and not the LX gear oil.

Eurol Fully Synthetic 75W-85 Gear Oil MTF GL-5 1L
Rating:
100%
$21.95

RAVENOL Gear Oil DGL 75w85 GL-5 LS 1L
Rating:
99%
$23.95

Toyota Tundra Rear Differential Fluid Capacity

  • 2013-2021 4WD models are typically 3.6 liters or 3.8 quarts
  • 2013-2021 2WD models are Typically between 4.0 - 4.6 liters or 4.2 - 4.8 quarts

Toyota Tundra Rear Differential Fluid Change Tools Needed

  • 3/8- or 1/2-inch drive 24mm socket
  • 3/8- or 1/2-inch ratchet (dependent on bit socket drive size)
  • Waste oil drain pan container
  • Qty 2 rear differential drain and fill plug sealing washers (part number 12157-10010)
  • Protective rubber gloves and safety glasses
  • Optional fluid pump tool (All EUROL and RAVENOL gear oil bottles come equipped with a built-in flex hose cap that works well for most Toyota Tundra gear oil applications. However, if you choose to use a different brand of gear oil, the service is much easier with a fluid pump tool and flexible hose. We offer two fluid pump tool solutions: part numbers J91001 and T2A0129.)

Toyota Tundra Rear Differential Fluid Change Video Guide

Step-by-Step Toyota Tundra Rear Differential Fluid Gear Oil Change Instructions

Disclaimer:  Blauparts recommends having a factory-trained A.S.E. certified Toyota mechanic perform vehicle maintenance. Always refer to the owner's and factory service manuals for Toyota axle differential fluid changing procedures. Always wear protective gloves and wear safety glasses when handling fluids and oils.

How To Step 1

Confirm that the rear differential is warm. This allows the fluid to drain more thoroughly from the differential while it's being drained.

How To Step 2

Confirm that the vehicle and rear differential are in a level position. Most Tundra rear differential fluid changes can be done on level ground and won't need to be lifted due to enough ground clearance.

In our case we’re going to be gaining access to the bottom side of the vehicle by using an automotive lift. To confirm you're lifting the vehicle correctly you can reference your factory owner’s manual for the proper vehicle lift point locations and safety procedures.

How To Step 3

Locate the rear differential fluid fill plug on the rear right side of the differential. Loosen and remove the fill plug along with sealing washer in a counterclockwise direction using a 24mm socket and ratchet.

It is always best to confirm the fill plug can be removed before draining the Toyota Tundra differential fluid. This will ensure you can refill the differential with fluid in case the fill plug is seized or can’t be removed.

Toyota Tundra rear differential fluid fill plug location

How To Step 4

Locate and remove the differential fluid drain plug. This is on the lower right corner of the differential. Loosen, and remove the drain plug and sealing washer in a counterclockwise direction using a 24mm socket and rachet, and allow the old gear oil to thoroughly drain into a waste oil drain pan.

Toyota Tundra rear differential fluid drain plug removal
Old Toyota Tundra rear differential gear oil draining

How To Step 5

Using a clean rag, clean the drain and fill plugs from excess, contaminants, and debris.

Cleaning Toyota Tundra rear differential drain and fill plugs from debris

How To Step 6

Reinstall the differential fluid drain plug and sealing washer by threading it in a clockwise direction. Using a 24mm socket and torque wrench tighten the drain plug to a 36 ft lb. torque specification.

Reinstalling Toyota Tundra rear differential drain plug

How To Step 7

Begin filling the differential with the recommended 75W-85 GL-5 gear oil.

Refilling Toyota Tundra rear differential with new Eurol 75W-85 gear oil

How To Step 8

The correct fluid level is achieved when a stream of fluid begins overflowing from the differential fluid fill port. See capacity notes below.

Toyota Tundra Rear Differential Gear Oil Change Capacities

  • 2013-2021 4WD models are typically 3.6 liters or 3.8 quarts
  • 2013-2021 2WD models are Typically between 4.0 - 4.6 liters or 4.2 - 4.8 quarts

How To Step 9

With the rear differential fluid fill level confirmed, re-install the fill plug and sealing washer by threading it in a clockwise direction. Using a 24mm socket and torque wrench, tighten the fill plug to a 36 ft lb. torque specification.

Reinstalling Toyota Tundra rear differential fluid fill plug

How To Step 10

Using a rag, clean and remove the excess fluid from the rear differential fluid drain and fill plug areas. The differential should be completely cleaned from any fluid residue. This will help when inspecting and confirming that the rear differential does not have any leaks after performing your fluid change and test drive.

How to Step 11

Once you have the vehicle on the ground, you can take the car for a simple 5 to 10-minute test drive and then examine the Toyota Tundra rear differential and confirm you do not have any leaks coming from the rear differential drain plug.

How to Step 12

Please dispose of your old rear differential fluid responsibly by taking it to a certified recycling collection center.

Take Used Oil to Certified Recycling Center

Note: It is good to note in your records the current mileage at the time of your rear differential fluid change and when you might want to change it next. We also recommend that you keep detailed service records to track your vehicle's condition. Keeping good vehicle maintenance records can help improve your vehicle's resale value.

Why Choose Blauparts for All Your Vehicle Lubrication Needs?

BLAU® differential fluid change kits use high-quality, fully synthetic* gear oils and transfer case fluids. Our fluids are sourced from lubricant partners that employ sustainable efforts to improve the environment using a higher level of quality. In turn, this can support the conservation of the environment through less driveline fluid changes and waste, optimize vehicle efficiency and performance, improve and maintain fuel economy, reduce exhaust/carbon emissions, and improve performance through reduced coefficient of friction and less driveline rolling resistance.

*For most kits, check the product description.

Technical Advantages:

  • BLAU® differential fluid change kits conveniently include the correct fluids, gear oil, fluid specifications, and quantities for your vehicle's transfer case and differential fluid change needs
  • All kits use differential and transfer case fluids that meet or exceed your vehicle manufacturer's specific fluid specification requirements
  • Advanced gear oil and transfer case fluid formulation technologies engineered with improved lubricating properties
  • High-quality fully synthetic gear oils and transfer case fluid formulations allow for extended service life, conserving Earth's resources
  • Better extreme pressure (EP) properties, shear stability, lubricating film strength, and oxidation resistance even when exposed to high temperature and high load pressure
  • Optimize driveline efficiency and fuel-saving characteristics with higher-quality gear oils and transfer case fluids
  • Excellent cooling capacity for better driveline performance and less wear 
  • Low foaming properties and resistance to internal differential and transfer case fluid cavitation
  • Great cold-temperature lubricating properties and flow for added driveline protection and efficiency during the cold driving phase

Disclaimer: Always consult your service manual and confirm your application's specific fluid and oil requirements. Always follow the vehicle manufacturer's recommended oil change intervals. Blauparts, Eurol, and Ravenol are not affiliated with Toyota, Toyota Motor Corporation, Toyota Motor Sales USA Inc, Lexus, Lexus International, Subaru, Subaru Corporation, Subaru of America Inc, its affiliated companies, subsidiaries, licensors, any other vehicle, or vehicle part manufacturer. All trademarks and OE specification part numbers referenced in this product listing are displayed for identification purposes only. They do not intend to denote any affiliation with their corresponding owners.