General Motors 8L90 8-Speed Automatic Transmission Teardown

The GM 8L90 8-Speed Automatic Transmission is found in the Cadillac Escalade, Chevrolet Corvette, Chevrolet Silverado/GMC Sierra, GMC Yukon Denali, Chevrolet Camaro, Cadillac ATS, CTS, and CT6. This video series covers the entire teardown in several short videos.

    TransTec Products for 8L90 8-Speed Automatic Transmission

    Overhaul Kit 8L90 2014-UP (w/o Pistons)
    Overhaul Kit 8L90 2014-UP (w/ Pistons)
    Valve Body Gasket Kit

    Automatic Transmission Seal Kits and Tools

    TransTec® automatic transmission seal kits continue to be produced with the same high quality and dependability as when the brand debuted in the automotive aftermarket in 1978. As a brand of Freudenberg-NOK Sealing Technologies, the world’s largest producer of sealing products, TransTec® is the only aftermarket overhaul kit brand that is both an original equipment manufacturer and holds ISO-9000 certification. These are just a few of the many reasons why more transmission professionals install TransTec® kits than all other brands combined.

    TransTec® Transmission Seal Kits available worldwide

    TransTec® brand transmission seal kits have been supplied to the automotive aftermarket since 1978 and are available through distributor all around the globe.

    Need to ID the Transmission in a Specific Vehicle?

    Access the TransTec® Online Transmission Application Guide — the original guide to automatic transmissions by vehicle.

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