| Business | Phone |
| Yankton Transmission Spec 2916 E Highway 50, Yankton 57078 | (605) 665-1175 |
| B & B Transmission Star Rt, Yankton 57078 | (402) 667-4149 |
| B G & S Transmissions 1003 E Sd Hwy 50, Yankton 57078 | (605) 665-9012 |
| Quality Transmissions 1601 Eastside Dr, Yankton 57078 | (605) 665-1825 |