I am using a VDO electronic speedometer and have seen alot of innovative ways to send the electronic signal via the 901 trans. My solution is to cut off the slotted key end of the speedometer cable that fits the angled trans cable driver. Drilled out the cable hole and sodder in a shortened square key drive that is in the standard GM VDO sender. I had a machinist do this and make a bushing that will center the slotted cable end in the GM sender. The GM sender has a threaded nut that will fit the 901 angled cable driver which is amazing because I thought it wasn't meteric. Hopefully this picture comes out.

Philip

too small

original post fixed.