It will have rear drum brakes and won't have ABS. If there is no adjustment left you probably need new cables. There was a TSB on the model in about year 2000 to replace the rear brake's pressure ...
The following was published in CCJ's Air Brake Book, 11th edition, sponsored by Silverback HD. CCJ's Air Brake Book is a complementary industry resource, courtesy of our partnership with Silverback HD ...