Brake bleeding problems 94 F350 4x4
New to this forum. My boss has a 94 F-350 4x4 single axle crew cab truck. The rear end had to be changed due to a blown pinion (blew a hole through the bottom of the housing). A used rear end was installed ( new brake shoes and hardware were used). We can't get the brakes to bleed. The pedal is nice and hard with the engine off but once the engine is fired up the pedal goes soft and the anti - lock light is on. Does anyone know of a special procedure to bleed these brakes ?
Thankyou.
skmodmsl
86 F-150 4x4
300 C.I.
4 speed




