Is it true that most of the Oldsmobile diesels were coupled to the Turbo HydraMatic THM200 automatic transmission? I know that was the case with the 1979 Oldsmobile Cutlass coupes and sedans when they were specified with the LF7 4.3L V8 diesel.
In 1981, the 200-4R automatic, which addressed the issues associated with the older direct-drive THM200 by way of beefing up the internals as well as adding an overdriven 4th gear, was introduced. Its bellhousing was also compatible with engines from the Chevy and BOP (Buick, Oldsmobile, Pontiac) libraries.
My question is, wasn't the standard automatic transmission across the board for the LF9 5.7L V8 and LT6 4.3L V6 diesels the THM250(C) or THM350(C) for rear-drive cars? The front-drive E-body, formal-roof Riviera, Eldorado and Toronado coupes used the THM325 direct-drive transmission for 1979-81, while for 1982-85 the THM325-4L automatic overdrive was used.
I am asking this question so that I can help others here as to which transmissions were factory.