[rotorwrench]

In the flathead years, the Lincoln was the only type to use the T85-R11 behind the big 337 and likely on into the 317 Y-block era for those that didn't want an automatic. Most Lincolns came with automatic transmissions in the big Y-block era. The Ford cars all used lighter duty stuff but this likely did start to change in 1956. Mercury stayed with heavier duty but Ford only had a few models that toyed with that stuff. T-birds, station wagon types, and police interceptors were considered heavy duty but I don't know how far all that stuff went in 1956. 1957 was a year of a lot of changes and 58 even more.