Abstract: A belt tensioning assembling for use in a clothes dryer positions a drive belt in tensioned relation about a rotatable drum and a drive pulley mounted within the dryer housing. The belt tensioning assembly includes an idler pulley and a resilient mounting bar. The mounting bar is preferably pre-stressed to maintain the belt in aligned tensioned relation about the pulleys. The mounting bar includes a torsion arm member, a moment arm member, and a cantilevered positioning arm member onto which the idler pulley is rotatably mounted. The moment member joins one end of the positioning member to one end of the torsion member. The torsion member is secured in positioned load transfer relation with the housing. This locates the positioning member in predetermined spaced relation to the main axis of the drive pulley so that the idler pulley may be mounted thereon. Once mounted, the idler pulley may be moved to receive the belt thereover so as to provide tension thereto.