I JUST GOT MY BARN FIND 4400 BACK ON THE ROAD AFTER 20 PLUS YEARS AND NEED A LITTLE OPINION/ FACTS ON BRAKE PERFORMANCE. NEW WHEEL CYLINDERS FRONT AND BACK, MANUAL CORVETTE 1 INCH DUAL MASTER, 10LBS RESIDUAL VALVES AND A ADJUSTABLE PROPORTIONAL REAR VALVE.AND BRAKE HOSES. I ADJUSTED THE SHOES TO THE POINT WHERE THE TEMPERATURE IS WITHIN 10 DEGREE OF EACH OTHER ON A HARD STOP. WHAT EVER I DO I CAN NOT GET THE BRAKES TO LOCK UP FOR A PANIC STOP. THE REAR BRAKES DO HAVE 2 WHEEL CYLINDERS EACH WHEEL .SO WHAT I AM ASKING IS IT POSSBLE TO GET THE BRAKES TO PERFORM BETTER. THE TRUCK DOES STOP AND DOES NOT GET FADE THE DRUMS ARE NOT WARPED AND THE PEDAL IS FIRM BUT NOT STONE HARD.