There's also the 375, it was used in some Buick application as I recall. It has a longer tailshaft.
There's also a truck 375, basically a short tailshaft 400. It was use in 4x4 trucks with tha NP203 full time t-case. My parents used to have a '76 Blazer that was equipped with that trans/t-case combo (Dad special ordered it that way).
