[John]

I think what is going on here is that there are two different lengths of steering shaft for the two tooth box. In '29 and early 1930, the two tooth Gemmer used a 43" shaft. Later in '30 the steering shaft length was increased to 44". In early 1930, Ford also used the 7 tooth box. Thus the need for several different lengths of horn rods for the two tooth box. It looks like Dan may have the Gemmer box with the 44 inch shaft and the '29 jacket column. Thus his longer, 44" shaft is not compatible with the '29 style horn rod made for the 7 toorh box..
One fix is to get the now made 44" steering shaft that the worm keyway is cut so that it is used with either the 43" 2 tooth box setup for the '29 or the 44" shaft for the '30-'31. One just pushes the worm up on the shaft and cuts the excess off. Dan can push the worm up on the shaft a bit as needed and shorten the steering shaft. But bear in mind the correct column sleeve must be used. Using the longer steering shaft with the shorter '29 two tooth column jacket will result in the steering wheel being located above the column jacket up to 1".

John