Flywheel 122 Tooth

all goofing aside, i just grabbed the box and it is indeed the MU1525-1 kit.

to note: i know this fits the 9.5" large register /6 and V8 wheel, i do not have a early small register unit to compare it against but i imagine that it is the same.
Yes, the clutches are the same. I can verify that first hand. I've swapped one to the other.