Larry, you will need to use the universal Hopkins EasyLift Truck Bed Tailgate Lift Assist # 74211 as there is not a custom fit tailgate assist device for your 2004 Chevrolet Avalanche 1500. view full answer...
The only class v trailer hitch option we offer for a 2004 Chevrolet Avalanche 2500 is the Curt Trailer Hitch Receiver part # C15324 which has a 2" receiver tube opening. This is a custom fit option with no drilling required.
I don't have confirmation of the Draw-Tite Trailer Hitch Receiver part # DT45515. view full answer...
Nobody makes a plug and play wiring harness for the 2007 Chevy Avalanche. You will need to splice in the wires to install your Tekonsha Prodigy P3 Trailer Brake Controller # 90195. Based on the information I have you will be able to find bare ended wires for the tow package under the dash between the steering column and emergency brake pedal.
I went ahead and attached an installation video and tech bulletin on the installation below for your reference. view full answer...