Bought a 727 trans for a guy from work and he claims it has a reverse manual valve body in it. I have never seen one with a Chrysler part number on it. Can anyone help id the trans year and valve body. The trans has no vin stamped on it. The trans numbers are 3878001 M4977 8798. The valve body is 37431559. He swears the trans was rebuilt by Mancinni Racing years ago. Thanks for any help.