WE EXPERIENCED AN OVERHEATED DIESEL ENGINE AND WAS REFERRED TO JACKS--5 MILES FROM DOWNTOWN SHERMAN .WE BABIED THE TRUCK UP TO JACKS...WHERE JACK DROPPED EVERYTHING HE WAS DOING TO INVESTIGATE THE CAUSE.. HE CALMLY AND PROFESSIONALLY ANALYZED ALL POSSIBLE CAUSES AND PROCEEDED TO TACKLE EACH PROBABLE CAUSE WITH UTMOST CONCERN...WATCHING HIM WORK AND FEELING CONFIDENT THAT HE COULD FIX PROBLEM (S) B WAS A BLESSING AND OF COURSE A TREMENDOUS RELIEF! AFTER 3 PLUS HOURS JACK FINISHED HIS REPAIRS AND "TEST DROVE" THE TRUCK (VERY RARE WHERE WE COME FROM---TEXAS) TO PROVE THE INTEGRITY OF HIS REPAIRS...IT PROVED "ROAD WORTHY" AND GAVE US THE CONFIDENCE NEEDED TO PROCEED TO TEXAS HAULING A HEAVILY LOADED CARGO TRAILER....SORT OF DREADING THE BILL PRESENTED TO US BY HIS WIFE, WE WERE PLEASANTLY SURPRISED BY THE "HONESTY" OF THE PARTICULARS...USED TO BEING "TAKEN" ON THE ROAD, WE WERE MORE THAN HAPPY TO BE GIVEN AN HONEST BILL FOR HIS MOST APPRECIATED WORK ! TOM/ANN SMITH ROCKWALL TEXAS