The 350 Diesel was available in the following 1978 year: Oldsmobile Delta 88 and 98, Checker Marathon, Cadillac, Chevy C trucks 1979 year: Oldsmobile Cutlass, 88's and 98's, Toronados, Trofeos, Cadillac, Chevy C trucks 1980-85 year: Oldsmobile Cutlass, 88's and 98's, Toronados, Trofeos, Buick Rivieras, LeSabre, Electra, Estate,Regal, Pontiac Bonneville, Catalina, Parisienne, All Cadillacs, and Chevy C trucks (untill after 1981), Caprice, Impala, Monte Carlo, El Camino