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Toyota Tundra Transmissions: Overview, Problems, Fluids

Toyota first launched the Toyota Tundra in 1999. It had a lot in common with the Toyota T100 and the Toyota Tacoma. For example, each truck possessed a 3.4-liter V6 engine. In 2006, Toyota revealed its most spacious Tundra at the Chicago Auto Show. Its design was similar along the lines of the Toyota FTX and Tacoma. Notably, its launch pushed the boundaries by emerging as the beefiest truck. Today, we will go through different transmissions the Toyota Tundra has used during its journey so far. So, get the ball rolling. 

The Toyota Tundra used 5- or 6-speed manual and 4- or 5-speed automatic transmissions in the first generation. In the next generation, though, it used the 5- or 6-speed automatic transmission. The third generation, however, embraced the 10-speed automatic transmission.

We begin by admitting that the explanation laid out above provides a compact overview. Indeed, it is not sufficient to understand transmissions that went inside the Toyota Tundra. Therefore, we will discuss transmissions from different angles to understand various models that have gone inside it throughout its journey. First, we will look at the cost of replacement and their durability. Next, we will see some common problems that emerge during the lifetime of those transmissions. Eventually, we will go through some differences between those transmissions. For your help, we will also share the source to help you get the fluid compatible with your transmission. So, here we begin.

Also read: The Types Of Gas A Toyota Tundra Uses (Explained)

What Transmissions Has The Toyota Tundra Used?

Here we see different transmissions the Toyota Tundra has used throughout its journey.

First Generation (1999–2006)

  • 5-speed manual
  • 4-speed A340 automatic
  • 6-speed manual
  • 5-speed automatic

Second Generation (2006–2021)

  • 5-speed automatic (A750E/F)
  • 6-speed automatic (AB60E/F)
  • 6-speed automatic (A760E/F)

Third Generation (2021–Present)

  • 10-speed AWR10L65 ECTi Direct Shift automatic

How Long Does A Toyota Tundra Transmission Last?

Regular maintenance plays a significant part in determining the proper functioning of the transmission. Moreover, the transmission quality also determines its durability. On average, the transmission is likely to last between 100,000 and 120,000 miles. Swiftly acting to fix any problems is a profound way to increase its lifetime.

Also read: The Expected Mileage Of A Toyota Tundra

How Much Does A Toyota Tundra Transmission Cost?

Do you want to replace your transmission as it got dysfunctional? In that case, knowing the costs of different transmissions is vital. Below, we give you an overview of the prices to help you make up your mind.

  • 4-speed A340 automatic: $3,499.00 (InductionPerformance)
  • 5-speed A750E automatic: $2,395.00 (SPPrecision)
  • 6-speed AB60E automatic: $3,717.60 (GoPowerTrain)
  • 6-speed A760E automatic: $3,486.15 (GoPowerTrain)

Common Toyota Tundra Transmission Problems

Let us go through some common problems the transmissions of the Toyota Tundra exhibit on and off during their lifetime.


  • Some common problems with the transmission are erratic shifting, loss of the forward gears, or failure of gear engagement. It is usually a problem with the torque converter or failed solenoid that causes these issues.
  • Another issue with the transmission is overheating. It happens as its running inside parts creates more friction than the transmission fluid can eliminate.
  • Other causes leading to overheating are towing heavy loads, stop-and-go traffic, and driving in the mountainous region.
  • The design defects in the stripped splines, reverse boost valve, and the channel plate on the fourth gear clutch hub shaft lead to inoperable fourth or reverse gear.


  • Erratic transmission shifting is one of the common issues with the AB60E transmission.
  • The gliding of the torque converter into lockup mode may precipitate an intermittent shoulder.
  • The transmission fluid leak may erupt from the driveshaft yoke.
  • Additional issues that the drivers may experience include harsh shifting and transmission slipping.
  • A driver may also go through the delayed engagement of drive and reverse. Apart from this, Engaging neutral or park may also become rough.


  • An aggressive driving style causes problems in the valve body, solenoids, and torque converter.
  • Driving on off-road territory or snow also leads to problems in the given components.
  • Neglecting the transmission overhaul for an extended period paves the way for replacing friction components with all solenoids.
  • Operating the transmission with an impaired torque converter clutch can lead to fluid leaks.
  • It is worth remembering that there has been a constant modification of the valve body of the A750E transmission. So, complying with a VIN code is crucial when selecting the valve body and solenoids.


  • Clogging the valve body and the solenoid leads to pressure shortage that helps burn spare parts and the package of friction discs. Often, the burnt transmission requires the replacement of all frictions.
  • The problems regarding shifting are often the result of a worn-out valve body. Hence, rebuilding procedures begin cleaning the solenoids and valve body. However, the condition of the valve body is contingent on fluid condition and the torque converter lockup.
  • The tattered elements of the torque converter also accompany all valve body problems. Hence, there is also a need for the torque converter to get repaired.

Also read: The Exact Bolt Pattern Of A Toyota Tundra

Differences Between Transmissions

The A340 is a 4-speed electronically-controlled automatic transmission. It was first released in Toyota vehicles. Subsequently, it was also featured in several other cars. It includes different types of pickups, SUVs, and sporty sedans.

The AB60E is a six-speed automatic transmission that consists of three planetary gears. It has one reverse gear and six forward gears that need 11 shift actuators. It includes three clutches, four brakes, and four one-way clutches. While the front planetary row is single row and double stage, the rear and middle planetary rows are single row and single-stage.

The A750E is featured in rear-wheel-drive cars, and it is a 5-speed automatic transmission. It improves fuel economy and ensures power performance. Moreover, it is compact and keeps a high torque capacity. Meanwhile, its manufacturer has also obtained advanced technology. As a result, it delivers a high-quality shift feel and quiet performance.

The A760E is a six-speed automatic transmission. It is designed for rear-wheel-drive applications in 4WD, 2WD, and AWD configurations. It weighs in at 85 kg, and thus one can call it one of the light-weight transmissions ever produced. The 2003 and later models of Toyota have embraced this transmission. Its electronic control system features AI that continuously adapts to the operator’s driving habits.

Transmission Fluids And The Toyota Tundra

Solving the problems without notable delay is the first measure a car owner can take to ensure seamless running of the transmission. Experts recommend replacing fluid every 45,000 miles when it comes to changing it. Meanwhile, it is to note that different transmissions need different fluid types. So, for your assistance, we give you the source below.