The 1940 Ford Tudor Sedan I inherited was an awesome addition to my other old cars without a doubt. When I started driving the Ford, the speedometer needle was flopping within a range of at least thirty miles per hour. Even a well lubricated new speedometer cable did not solve the problem. The gears in either the speedometer gauge or in the transmission or both were pooched. What to do?
It wasn’t too long before I worked out how to add a GPS in the Ford. I went to CTC and purchased the smallest 12 volt battery available plus a GPS. At the end of the steering column on the inner fender was room to mount a base holder for the small 12 V battery. I ran the wires from the top of the dash on the driver side, down the steering column then through the space between the column and the cowl and over to the battery box. I had already soldered on wire connectors to be attached to the battery anodes.
The GPS is a necessary addition for my safety and for others. I just have to remove the contact wire on the back of the GPS monitor when the 40 Ford is not being used. It is also easy to unscrew the battery wires when I need to remove the battery to put it on the trickle charger.
Now the GPS for my 1928 Lasalle was a similar scenario except I was able to attach the battery box on the inside cowl up behind the passenger side dash. Making the wood battery box and attaching it to the cowl was not a huge task. I made the box with sides high enough to hold the battery but still accessible when I needed to remove the 12 volt battery.
The power ends of the GPS cord had to be cut and new ends attached to accommodate the screws in the battery anodes much the same as the 40 Ford 12 volt battery. I again used the steering column part attached underneath the dash. In that part I was able to attach the power receiver. I ran the GPS cord from the top of the dash down behind the dash and plug it into the GPS receiver at the front when it was needed. Now I am able to accurately read the speed of my 1928 Lasalle.