Complex sentence: Ray Hendrick (April 1,1929--September 28,1990), was known as "Mr. Modified" during his 36-year career in motorsports mainly in the modified stock car racing class.
Split into simpler sentences: Ray Hendrick (April 1,1929--September 28,1990) was an American race car driver. He was known as "Mr. Modified" during his 36-year career in motorsports, mainly in the modified stock car racing class.