Brake Auto Adjusters

My 68 Coronet RT had 11x3 drums up front, 11x2.5 drums out back. All manual adjustments, no auto adjusters. That's stock. IT looks a little strange, but 1 heavy spring crosses the top of the adjusters, keeping pressure on the spurs so it doens't turn. The spurs on the adjuster are much larger than the self adjusters. The self adjusters also have a sawtooth direction to them, the manual adjusters do not.

There's nothing wrong with either system. Keep the manual adjusters. IF you need the auto type, go to an autoparts store, they should list both. Make sure they are for 11" brakes, not 10".