I have a 2004 Silverado 4x4, 1500 Series, Extended Cab, Short Box. I am having a problem with a clunk/Bump/Squaking Noise in the driveline. I looked up a TSB that shows the problem I have. But, it does not show the problem for my model. Here is a list of models the TSB relates to. My question is, would this TSB apply to my vehicle and just needs to be revised to include mine? It shows my vehicle model, but not to year 2004.