well, this is the one that was on my cuda when I replaced it with a 70 Bendix I picked up...there is a NOS 71 in the box for sale in the E body parts for sale section page 6, I picked up a NOS 71 Midland Ross booster in the box a few months ago on ebay...I looked for a LONG time for one, looks the same as my old one and the one for sale here on moparts...can't believe I don't have a pic of the one I bought on my computer...