[Mr70]

Manual Trans.,no..Automatic yes,in both bench & bucket seats.
If you ordered the Auto Trans.,it would've started out on the steering column 1st.You had to pay an extra $53.75 if you wanted it on the floor w/console and then another $121.15 for the buckets too.Bench seats were std. equipment with the Super Sport pkg.
Bucket seats didn't mean it automatically came with a floor shift either.It woulda stayed on the column,unless you paid extra for the console/shifter.
But of the 1487 L-78 engines coded for an Auto Trans.,one can only extrapolate or "guesstimate" as to how many were column shifted vs. floor shifted.
Chevrolet & Fisher Body didn't keep accurate records,and none have been found yet to show exactly how many actually were.