AB60E AB60F Master Rebuild Kit Tundra Sequoia 5.7L

If your 5.7L Tundra or Sequoia has started flaring between gears after a summer of towing, smells burnt on the dipstick, or drops fluid from the pan rail, the six-speed underneath it is the Aisin AB60E (two-wheel drive) or AB60F (four-wheel drive). This master rebuild kit is built for that unit in 2007-2011 Toyota Tundra and 2008-2011 Toyota Sequoia trucks with the 3UR-FE 5.7L V8. It puts the friction plates, steel plates, gasket and rubber pack, and a new filter in one box so a bench overhaul does not stall halfway through waiting on a second order.

What a master rebuild kit does in an AB60E

The AB60E is Aisin's TB-68LS, released in 2007 when Toyota needed more torque capacity behind the 5.7L. Transmission Digest describes it as a scaled-up version of the A761E six-speed: everything is larger, including a bigger gerotor pump, bigger pump seal and bushing, and a larger converter hub. Inside are four rotating clutch packs (C1 through C4), four holding brakes (B1 through B4) and four one-way clutches (F1 through F4), working through three planetary sets. That is a lot of friction surface, and when a truck has been worked hard the wear is rarely limited to one pack. A master kit renews every friction and steel and reseals the case, pump and drums in the same job, so you are not putting new frictions next to glazed original steels or trusting hardened sealing rings to hold apply pressure.

Symptoms that point to a full overhaul

• Slipping or engine flare on the 2-3 or 3-4 shift, worst when loaded or towing
• Delayed engagement into Drive or Reverse after the truck sits
• Dark fluid with a burnt smell and friction material in the pan
• Slipping that returns even after a fluid service
• Leaks at the pan gasket, the pump seal or the case seals as the rubber ages
• A unit that has already overheated, where several packs have taken heat at once

How to confirm before you buy

Not every AB60 complaint is worn clutches. This valve body carries nine solenoids, many of them linear, and a sticking solenoid or a dirty valve can produce harsh or flared shifts that look like slipping. Scan for stored codes, check fluid level and condition with the truck at the correct temperature, and watch commanded gear against actual input and output speeds on live data. If one gear slips consistently under load and the pan shows friction material, the clutch packs are the problem. Our guide to Aisin slipping under load walks through separating a pressure problem from a worn pack. If the fluid is clean and the problem is a single harsh shift, start with the AB60E solenoid kit before tearing the unit down.

Fitment

This kit is listed for the Toyota Tundra 5.7L 2007-2011 and Toyota Sequoia 5.7L 2008-2011, covering both the AB60E rear-drive and AB60F four-wheel-drive versions. Manufacturer part number ING-GN02211. The AB60 continued in later Tundra, Sequoia, Land Cruiser and Lexus LX570 models, but this kit is listed for the years above only, so do not assume it covers a later truck. Confirm the transmission code on the case tag or send us your year and VIN before ordering. You can browse the rest of our Aisin and Toyota parts on the Aisin collection page.

Install notes

• Drop the pan and filter, remove the valve body, then the pump, and walk the drum stack out in order. Bag and label the one-way clutches; the AB60 has four, and orientation matters.
• Inspect the pump gears and bushing, drum bushings, thrust washers and the sun gear splines before reassembly. A kit cannot fix a scored pump body or a worn bushing.
• Soak the new frictions in fresh Toyota WS fluid before stacking them.
• Build each pack with the new steels and measure clearance against the factory specification rather than guessing.
• Fit every seal and O-ring in the kit, especially the drum sealing rings and pump O-ring, then air-check each clutch and brake through its feed passage before closing the case.
• Original piston seals that have hardened will undo a good rebuild. If the pistons are tired, add the AB60E bonded clutch piston kit.
• Fill with Toyota WS, check level at the specified temperature, then clear adaptive values and let the transmission relearn. See our adaptive relearn guide.

If the valve body is worn or the old unit came apart from a pressure fault, plan on a replacement AB60E valve body as well; new frictions behind a bad valve body will burn again.

Does this kit fit both the AB60E and AB60F?

Yes. It is listed for both the rear-drive AB60E and four-wheel-drive AB60F as used in the 2007-2011 Tundra 5.7L and 2008-2011 Sequoia 5.7L. Check the transmission code on the case tag or send us your VIN if you are unsure.

What comes in the box?

Friction plates, steel plates, the gasket and seal pack (pan gasket, lip seals, sealing rings, O-rings) and a transmission filter. Manufacturer part number ING-GN02211.

Are pistons included?

No. This kit does not include bonded pistons. If the original piston seals are hard or leaking, add the AB60E bonded clutch piston kit.

What fluid does the AB60E use?

Toyota WS (World Standard) ATF. Soak the new frictions in WS before assembly and check the level at the temperature the factory procedure calls for.

Will this fix a harsh or flared shift?

Only if the cause is worn clutches or leaking seals. A sticking solenoid or worn valve body can cause the same complaint, so scan for codes and check live data before tearing down the unit.

Do I need a relearn after the rebuild?

Yes. Clear the stored adaptive values and let the transmission relearn shift timing with a proper drive cycle after the rebuild.

• Aisin transmission slipping under load
• Aisin transmission overheating prevention
• Adaptive relearn after a valve body or rebuild