1998 Chevrolet Silverado 3500

I WAS DRIVING MY ~ CHEVY DUALLY DIESEL TRUCK ~ ON A FREEWAY PULLING A TRAILER WITH MY ANTIQUE CAR IN IT WHEN THE TRUCK KIND OF HESITATED / SPUTTERED AND DIED ! I LOST POWER BRAKES - BUT WAS ABLE TO GET PULLED OVER TO SIDE AND AFTER A PERIOD OF TIME THE TRUCK RESTARTED ... NUMEROUS TIMES AFTER THIS I HAD THE TRUCK DIE AND HESITATE - I TOOK TO A CHEVROLET DEALER ONCE - THEY QUESTIONED THE PASSLOCK SECURITY SYSTEM AND BAD IGNITION SWITCH - WANTED A RIDICULOUS PRICE TO FIX .... THE TRUCK ONLY HAD 73,000 MILES WHEN I BOUGHT IT , AND I HAVE NOT DRIVEN IT MUCH ONLY 81,000 MILES PRESENTLY - AND I HAVE NOT DRIVEN IT IN OVER A YEAR BECAUSE OF FAILURES TO START. I HAD BOUGHT A KIT AND "PMD / FSD" MODULES AND FINALLY GOT AROUND TO SWAPPING IN ANOTHER ONE - AND WOW NOW THE TRUCK IS RUNNING ----------------- " IT WAS A BAD STANADYNE PMD " ! I HAVE READ ON THE INTERNET NOW THE TROUBLES THESE HAVE HAD DUE TO HEAT AND WHERE PART HAS BEEN MOUNTED IN THE ENGINE AREA. I WAS AN ELECTRONIC INSTRUCTOR IN THE TECHNICAL COLLEGE SYSTEMS AND AS I NOW LOOK AT / EVALUATE THIS PART MADE BY STANADYNE ==== TO ME ITS DESIGN / CONSTRUCTION LOOKS AS IF ITS BUILT TO HOLD THE HEAT IT DEVELOPS INSIDE OF THE PLASTIC INSULATED CASE - THEREBY NOT RELEASING HEAT TO THE OUTSIDE CAUSING ITS ULTIMATE FAILURE DUE TO INTERNAL HEAT BUILDUP . *TR