TrailBlazer 2WD V8-6.0L VIN H (2006)
6. Release the bracket TCM retainer (1).
7. Tilt the TCM (2) away from the ECM/TCM bracket.
8. Remove the TCM (1) from the TCM bracket (2).
9. Only when replacement of the ECM/TCM bracket (2) is necessary, remove the ECM (3).