rolls has a gm tranny? cool
Back in the 70s, if you were a maker with a high horsepower engine and/or a heavy car and needed a transmission, you called GM and got a TH400. All the more so, since GM’s had a transmission plant in *France* of all places for the longest time.
Many brands used them, including some you’d never think of. From Wikipedia:
“Other non-GM firms have used the THM400 and its 4L80E successor, including Ferrari (in the 400/412), Jeep (usually found in the SJ pickups and SUVs), Jaguar (found in their pre-1997 XJ12 and XJ-S coupes), Rolls-Royce (1965–1980 Silver Shadow and 1980-1992 Silver Spirit series cars, along with their Bentley stablemates), and AM General. It has been known to adapt a THM400 to other engines via the use of adapter plates. “
GM’s French plant still makes BMW’s automatic transmissions under contract. They’re BMW designs, and GM doesn’t use them (because they can’t) but they put them together over there.