What is the capacity of a 1978 ford C6 transmission?
25-26 pints of Transmission Fluid Check level with engine running and oil warm.
the dry capacity is 7 quarts in the transmission itself. a truck tranny pan can and filter can be added to any car, and it adds an additional 2 quarts. the converter, varies by engine. convertor diameter vs capacity ( quarts ) 10" = 3 quarts 11" = 3.5 quarts 12" = 4 quarts 13" = 5 quarts
I'm not an expert on Ford transmissions, but, the C4 is usually considered a lighter duty transmission as it is used in cars for the most part, the C6 however, is used in Pick up trucks and high performance cars of the time period. I would say, depending on your needs, the C6 is the better transmission.