[Carl n Susan]

More than likely you have self-adjusting brakes on a 2017 Montana (I think they started using them in 2010 or so). Every time you stop going forward, they adjust themselves a bit. If the bearing packer had unadjusted (retracted?) them to ease removal of the drum, it will take several stops before they get back to where they should be.

It has been a while since I last adjusted brakes, but as I recall the front star wheel goes down and the rear star wheel goes up to tighten.