A FAILED Toyota Transmission? U660 6 Speed Automatic Teardown! 

Here's a look inside the Toyota U660 series of transmissions and how they work!
The U660 transaxles are used in many late 2000 Lexus and Toyota front wheel drive transverse 6 speed automatic transmission models, mated to the 2GR series of engines. The U150 series was its predecessor and are equally reliable, unless abused.
The transmission in this video is from a Toyota Highlander with a U661 variant for AWD. It suffered catastrophic failure, with all of the clutches wearing out. The oil pump had a broken gear, and even a sun gear from the first planetary gearset was broken.
This transmission likely experienced an overheat condition where it was run low on fluid or heavily overloaded due to towing.
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