Transmission general data
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 type4ATFWD45014,26,6Dexron 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?BrandModelYearTypeEngineBuickLUCERNE05-114 SP FWDV8 4.6LCadillacCONCOURS/SEVILLE954 SP FWDV8 4.6LCadillacDEVILLE/SEVILLE/CONCOURS96-054 SP FWDV8 4.6LCadillacDTS05-114 SP FWDV8 4.6LCadillacELDORADO95-024 SP FWDV8 4.6LCadillacLIVERY/HEARSE/LIMO97-014 SP FWDV8 4.6LOldsmobileAURORA95-034 SP F/4WDV8 4.0L
How to repair this transmission (Videos)4T80E Teardown4T80 transmision from cadillac 20034t80e trans side case bearing
Instruction manuals and useful linksLink typeSourceDescriptionwebwww.at-manuals.comSensors 4T80pdfwww.at-manuals.comConverter Update for GM’s 4T80Ewebwww.at-manuals.comScheme 4T80e