I also have a 87 Conquest and a 91 Stealth R/T TT. There is a company 3SX Performance near me in Charlotte which specializes in the Stealth and 3000 Gt. Met the owner @ Fall Charlotte Autofair and he told me that he routinely buys Mitsu parts from Japan for these cars which are no longer available in the U.S. Seems like it is the same w/ the diesel engine which is far more common in other parts of the World than the gas engine D50.