Help TC won't drop in place
What's with the double secret probation garbage.
Look on the pan rail, same side as the shift mechanism. There is a PK#######
Also there may be two additional 4 digit sequences. If it has 9C271xxx on the vin pad, that's a 1969
341xxxx is usually a 1970 model year trans.
So it's should be the later spline, unless someone swapped the parts.