Avanti up to chassis nr. 63 R 1225 Front = 82-1184 Rear = 82-1185 Avanti after chassis nr. 63 R 1225 Front = 82-1184 Rear = 82-1425 The Stude #'s are 1700702 for the front, and 1700703 for the rear (part numbers are 'each'). The front Stude pair is Koni # 8240A-1011, and the rear Stude pair is Koni # 8240F-1012. FWIW, Stude did not have a part number for the pair. WF