I had similar adjustment problems on my '99. I also had a self-adjuster that liked to loosen up over time and fall out if I didn't keep the brakes adjusted (then it would rattle around inside the drum).
Originally Posted by rb70383
I ended up buying two self adjuster repair kits (consisting of the lever, self-adjuster, & associated springs) from Napa for something like $15/ea, combined with a new spring set (another $6 - $8 for each side, replacing the "rest" of the springs & hardware), and a new set of shoes. So basically, I replaced everything except the backing plates, drums, & wheel cylinders. It's not perfect - but damn, what a difference. For the price - it's worth trying if you find yourself constantly adjusting the rear brakes.
"Life is meant to be enjoyed, not endured" ~someone