This item came from a large collection of New Old Stock (NOS) items purchased from a Chevrolet Dealership in California. These parts have not been offered for sale in the last 35 years. As you view our online catalog you will see many of these items listed for sale. Each item is unique and we cannot get more of them. These are new GM factory original parts - not reproductions. This is a NOS vacuum shift check tee assembly for 1955-57 Series 40 with brake booster, 8 cyl and 2spd axle. Itis in good condition with some surface rust. It is in its original well worn bag. Only ONE available-first come, first serve! GM# 3724084