I'm going to a 400 trans. I bought this from another member a couple of years ago, because the price was right. Has a stage right brake, Art Carr deep pan, hardened stator, Billet servo, etc. Has around 500 street miles, and about 20 passes. Works flawlessly. I drained the fluid, looked perfect. It is a non-lock unit. I won't ship it. I'll be going to the TB nats in May. Can bring it with me. Or come pick it up. I'm near Rochester, NY. Looking to get 1,200.00. Don't need a core back. Not in desperate need to sell, so please, no low ballers. If you want to see it run, you tube sicksix1 and 2. Thanks, Phil.