Fleet management is one of the competencies positioning Raleigh, N.C., ready mixed, aggregate and asphalt producer Sunrock Group among the Carolinas’ stronger independent operators. A 2001 change to Allison 4600s in its rear discharge mixer truck specs made the group’s concrete brand, Carolina Sunrock, an early adopter of fleetwide automatic transmissions.
Read MoreTwin Steers to Twin Shafts
