This is a new old stock pair of Delco rear knee action shocks for various 1939-40 Chevrolet passenger car and all 1941-48 Chevrolet passenger car applications. These shocks are in good, unused condition. This is a matched pair of 2100 A (left) and 2100B (right) knee action shocks. Please let me know if you have any questions or concerns. Thank you for your interest in this item.The item "NOS 1939-48 Chevrolet Passenger Car Rear Knee Action Shock Absorber Pair 2100A-B" is in sale since Monday, August 9, 2021. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Accessories". The seller is "redlines4life" and is located in Saginaw, Michigan. This item can be shipped worldwide.