SIERRA 3500 PICKUP 15 SRW, w/model year break point (opt AVF). SIERRA 3500 PICKUP 16-19 SRW. SIERRA DENALI 3500 15 SRW, w/model year break point (opt AVF). SIERRA DENALI 3500 16-19 SRW. SILVERADO 3500 PICKUP 15 SRW, w/model year break point (opt AVF).
