native66, it is actually as 61nate and larry_g say, if one wheel cylinder is of a different bore it will have a different pressure applied to the wheels than the other side. So that is a point to consider.
As well, as stated if there are problems with dents in the lines or hose issues fluid flow can be the problem.
I would start with a change of brake hoses both sides (unless you know the history of the hoses (ie, just changed last year) and replace the other wheel cylinder to make it a matched set.
The other thing I recall on drum brake adjustment is that the shoes on both sides need to be about the same distance away from the drum. One side adjusted close to the drum and the other a bit farther will take some time for the auto adjusters to get aligned. Thus a pull to one side.
Then as mearl says, check the back brakes, they may be causing the problems.
