anyone with info would sure help,have a 72 c-10 with drums on back disc on front truck ws in field for 3 years not running got it going,one issue front brakes keep losing fluid removed front tires thinking it was cylinders but not traced lines going under cross member cant find leak........ after 2 days siting after runnung fluidis empty again:
Are you noticing any fluid leaks? Draining inside the wheel, or disapearing altogether? Inside the wheel is the caliper or cylinder; no visible leak means it's probably leaking inside your brake booster. Good luck!