For sale: Transmission Control Module (TEHCM) for GM 6-speed trucks (6L80 / 6L90). For sale: Computer module and transmission control module with solenoids (TEHCM / Valve Body), original for GM 6-speed transmissions (6L80 / 6L90). Condition: Used, very clean, and guaranteed. Original GM with factory seal. Compatibility: Fits GM Suburban, Yukon, Chevrolet Tahoe, and Silverado / Sierra (models 2007 to 2014). Function: Solves transmission jerking issues, delayed shifting, or Limp Mode. Price: 1000, negotiable for serious buyers.