4T80E Transmission parts, repair guidelines, problems, manuals

Transmission general data

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The 4-speed automatic transmission 4T80E was designed in 1993 together with 4.6 liter engine V8 Northstar for FWD Cadillac models. In 2004, this heavy and high-priced transmission was significantly updated and installed with the same engine on Buicks and Oldsmobiles.

Number of gearsTransmission TypeDriveTorque (Nm)ATF (full capacity) LATF (change) LATF type
4ATFWD45014,26,6Dexron VI

Technical issues and repair guidelines

The owner of this rare transmission usually order only a 3-component filter. The overhaul generally consists in the valve body cleaning, the torque converter repair and gaskets replacement.

Which cars run with this gearbox?