I have never had any good luck with the automatic adjusters on drum brakes on
any vehicle. All
the brake hardware on this truck was replaced by me about 2 years ago.
Everything was installed
as per the official big $ GMC manuals. The threaded adjusters don't screw out to
keep the shoes
in position properly - I have to manually screw them into position. I've tried
lubricants on other vehicle adjusters, nothing on these current units except
what came on them.
Does anyone have an idea what lubricant would work best?