Velvet Drive Question

Greetings everyone. First time visiting. I used to have a '67 CC Mustang w/a 302, but now I have a '67 25' Pacemaker Express Cruiser I'm working on. The motor is junk, so while I'm hunting for a replacement, I figured I'd look at the Velvet Drive tranny. Its on my bench and the first thing I noticed is that the input shaft and output shaft seem to be locked as if one shaft, regardless of the position of the gear shift position. Shouldn't they turn independent of each other? I guess I'll start there. Any input would be appreciated.