Ford toploader OD 4 speed how rare?

I was unaware MoFoCo had done such a thing. I abused the crap out of the T&C in the '66 Ranchero. More info on the RUG below.

https://r.search.aol.com/_ylt=AwrgD...s/2940-2/RK=0/RS=AIcuhcclWmx9stSbJwP.Yk.yhig-