I was able to get this information from Bob Walczyk.Question said:... can you ask is there a difference between 04 and 05 gas pedals ? They only sell the pedal kits for 05 and above. I order a set today from gmpartsdirect.com, I hope they will go in place. Thanks again
Pedal kits will fit earlier years.
Pedal ratio did change for 06MY but NOT the shape of the mounting pad for the pedal cover.