Anthony, to find the correct replacement brake drums and hubs you are going to need to take a digital caliper # PTW80157 and measure your spindle using the diagram attached and let me know what those measurements are. view full answer...
Yes, the Curt TriFlex NEXT Trailer Brake Controller # C24VV will work in your 2006 Chevrolet Trailblazer. You will need the Universal Wiring Adapter # C51515 as the wiring for the brake controller is terminated under the dash and there is not a factory connector to plug and play into.
I have linked an installation video we did on a similar Trailblazer in our shop near the bottom of the page. While the Installation was for a Tekonsha Prodigy P2 # 90885 it will still help you identify where... view full answer...