Hey everyone, I have a 02 Chevy trailblazer 4wd and sometimes when you let off the gas and then get back on it generally at slower speeds I can make out a slight clunk in the rear end. It feels like you can also hear/feel it clunk when it upshifts and downshifts. TBis stock, with 205Kmiles on it. Is this just normal drivetrain noise? Thanks for your help.