Ages ago I removed all the self adjusters on my Barracuda. The brakes seldom needed adjusting and when they did it was minute and consistent across all of them. This would have been 1994ish and at the time I think wagner had a kit to get rid of the adjusters, came with some springs and maybe an adjuster?
I have since moved to disc brakes on the front and soon the rear.
68 Barracuda Formula S 340