E4od US shift quick 4 stand alone transmission controller available

[raydav]

How are you driving the speedometer?

spare Android phone, dedicated for the OBD computer and speedometer/odometer, and the quickshift4.

I have an 84 E350 IDI mechanical, and an 01 E350 PSD, OBDII. I don't know a lot about what is in between.

Where does a 98 E250 get a speed signal?