Even self-adjusting drum brake need initial manual adjustment to start with
They need to be 'burnished' by doing MULTIPLE stopping actions and letting brakes cool between each stopping
Dexter self-adjusting drum brake assemblies are forward adjusting....some adjusting will occur when backing up. Initial install.....do several short braking actions at slow speed using tow vehicle brake pedal. Brake/off/brake/off.
Should be able to hear 'click/click' of brake adjuster lever as if resets on star wheel
And after about 100 miles of use...you will notice a marked improvement to braking .............may never lock up except at slow speed on dirt/gravel surfaces.
