OER Parts offers a wide selection of Brake Components for your 1966 GMC K1000 Pickup. OER Parts offers 1966 GMC K1000 Pickup Calipers, 1966 GMC K1000 Pickup OE Calipers, 1966 GMC K1000 Pickup Performance Calipers, 1966 GMC K1000 Pickup Front Calipers, 1966 GMC K1000 Pickup Rear Calipers, 1966 GMC K1000 Pickup Anodized Calipers, 1966 GMC K1000 Pickup Powder Coated Calipers, 1966 GMC K1000 Pickup Wilwood Calipers, 1966 GMC K1000 Pickup 4-Piston Calipers, 1966 GMC K1000 Pickup Aluminum Calipers, and 1966 GMC K1000 Pickup Cast Iron Calipers.