You and me both. Post up if you find out anything. I have doubts if the newer Silverado and Colorado bumpers will fit. My best bet is to find an aftermarket bumper. Problem there is that very few companies make an avalanche bumper, and nobody with steps besides Move. Buckstop told me they have no interest in adding steps to their bumpers. Hammerhead has ones that fit Tahoes, which have similar bumpers, but said they will not make a front bumper for our trucks because installation requires cutting the grille from the bumper.