sentences:  Due to this brake system and GVWR under , the big deuce can be driven without a commercial driver's license in most states.The electrical system is 24 volt, using two 12 volt 6TL-series military grade batteries run in series.The M35 family was introduced in 1950 to replace the GMC CCKW and M135 family cargo trucks that constituted the backbone of U.S. military transport since their introduction in World War II.