There are 2 different Tuff Wheel adapters from the factory. The ones that came in cars have a master spline. The ones that came in trucks do not have a master spline. A car adapter won't fit onto a truck steering column shaft and a truck adapter won't fit onto a car steering shaft.
I have a 1988 d150 with tilt. No can I found fits. That's why I'm trying to get derlin one that plymouth67 used to make because it is open on the bottom to use a grant steering wheel adapter.