For sale: Transmission control module (TEHCM) and valve body for 6-speed GM vehicles (6L80 / 6L90). Advertisement text: Peace, mercy, and blessings of God be upon you, For sale: Transmission control module (TEHCM) and valve body with solenoids, original for GM 6-speed transmissions (6L80 / 6L90). Condition of the part: 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.