TAC module ?

[PitchBlackC3]

Thanks for the part #'s and information. I have read in a couple of places that beginning in '05, the seperate TAC module was not used, but wanted to double check before I go back to the salvage yard and start spending $.

That depends on what model you are talking about. The GMT800 trucks all have the TAC if they have ETC. The Trailblazer did get the newer PCM and no TAC in 05 I think.