If the adjusters are on the ends of the wheel cylinder, you've got Huck brakes. Bendix brake shoes free-float at the bottom and they have one adjuster that moves the shoes away from each other, also at the bottom. Bendix brakes started in 1950 or 51 on the 1/2 ton trucks- - - -not sure when the switch was made on the bigger ones.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!