95 chev 6.5 Dually Had brakes done at repair shop. Everything brand new except rear whl cyl's. including master cly. preasure bled . shop


has not been able to create a decient pedal , truck will lock up brakes


but pedal is wicked spongy, goes almost to floor. we are stumped.


Worked on big rigs for 35 yrs & a littl bit on stuff like this, never


saw a problem like this before. can any one help ? { abs ?, }


Thanks ahead . JB