Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
one idea i have is,after you have drivin truck and the brakes are locked up:
if you can jack up the vehicle and find out which wheel is locking up,
then once you know what wheel it is ,if it is still locked up try loosening the bleed screw.
once you have done that if the wheel now turns freely you probably have a brake hose by the calipre that is bad internally.if it does not turn after loosening the bleed screw it is more than likely a bad calipre