Core C-6 Transmission valve body for any 1970-71 Mercury Cougar or 1970-71 Ford Mustang with code "U" transmission code on the door tag. Sold as a core, should be thoroughly cleaned and rebuilt with quality parts. These units can be upgraded with 'shift kits' to firm up shifts, add longevity, and they help reduce and eliminate clutch and band slippage. Various kits available in the aftermarket, we offer one as well. This is the special valve body for 1970 428CJ and 1971 429CJ engines. Ford installed a slightly different valve body in 1968-69 428CJ engines. This core unit may or may not have a factory tag attached. Typical tag numbers: CJ or HA.
Basic Ford part number 7A100 on these main control assemblies. Ford part number for this item was D0OZ-7A100-E.