Hy BowtieJunkie, welcome, in order to help you locate parts for your project we need more information. What is the weight rating of your front axle, what type of wheels does your truck have, what is the width of your rear brake shoes or the weight rating of your rear axle and finally are your rear brakes self adjusting type or manual adjusting type??? Sorry for all the questions, but the late seventies were a time of many changes in medium/heavy duty truck brakes.
