2003 chevy trailblazer_ls
I agree with this- some on here change their front and rear endlinks at 20-50K....Mileage really isn't an indicator of needing change, it's road surface conditions that impact the most.
I changed my front endlinks- at about 132,000.
the rears are still factory and no noise...
But I do live in Southern California...
the other guys live in pothole hell.