1999 Chevrolet Silverado 3500

I NEED TO KNOW IF THIS VEHICLE IS A GMC OR CHEVY BECAUSE I HAVE TAKEN IT TO THE MECHANIC MANY OCCASIONS AND I ALWAYS HAVE PROBLEMS WITH PARTS THAT DON'T FIT. NO I HAVE ALWAYS HAD PROBLEMS WITH THE STEERING IT'S VERY HARD TO CONTROL WHILE DRIVING I PICKING UP TWO MECHANICS DIFFERENT TIMES RELATING THAT ISSUE AND THEY SAY EVERYTHING IS FINE BUT IT REALLY ISN'T I PURCHASED THIS VEHICLE USE I WOULD ALSO LIKE TO KNOW IF THERE ARE ANY RECALLSOR IF IT HAS BEEN INVOLVED IN MAJOR ACCIDENTS THANK YOU VERY MUCH

GET IN THE TRUCK WHEN ITS COLD STARTS ON FIRST TRY. YOU DRIVE THE TRUCK WHEN IT GETS HOT AND STOP TO PURCHASE SOMETHING THEN YOU GET BACK INTO THE TRUCK PUT THE KEY IN THE IGNITION TRY TO START . IT WILL NOT START JUST CRANKS . I HAVE TO LET THE TRUCK SIT FOR ABOUT 10 TO 15 MINUTES THEN IT MAY START. THIS PROBLEM HAS COST ME (2) NEW FUEL PUMPS AT THE GM DEALERS STRANDED ME IN THE PARKING LOTS IN THE DESERT TOWING ETC. AFTER RESEARCHING THEY SAY IT IS A PASS LOCK PROBLEM SOMETHING ABOUT SECURITY/ THEFT. I'M THE ORIGINAL OWNER TRUCK WAS ALWAYS HARD TO START MORE THAN3TO 4 CRANKS. WHY HASN'T THIS BEEN ON A RECALL FOR GM?