Transmission / Overdrive: Automatic transmission Model DG-250-M

[Polle]

Hi everyone,

It's been a while since I have posted on the forum. I'm still in the process of building my '55 studebaker e-series truck (1/2 ton) and progress is good!

I have replaced the old line 6 engine with manual tranny, with a '55 V8 and automatic transmission.
Model D-250-M Borg Warner.

On the tail of the tranny, opposite side to the gear linkage, there is a solanoid.
I expect it to be for an overdrive but I'm not sure. What is this solanoid for?

Also, it used to be a 6 volt car. I'm changing it to 12 volts. Will this affect this solanoid. Obviously I want to prevent a 'nuclear meltdown' So if i need a resistor, please advise!

Thanks for all comments, advise and knowledge in advance! Cheers from The Netherlands,
John-Paul

[StudeRich]

There are no electric contols that affect the Transmission on a Detroit Gear Division of BW, 3 band Studebaker Automatic Drive Trans. DG Series.

There are Anti-creep switches etc. for the Brake System, most are disconnected and no longer used. I would not worry about them, they were for beginners with Automatic Transmissions in 1950 when most cars had Manual Transmissions that did not know to hold the brake when stopped!

[Polle]

thanks for the quick respons. Just to double check...so if I understand correctly I can leave this solanoid disconnected for its only purpose it to prevent the car from rolling while in drive without pressing the gas pedal?

[Tom Bredehoft]

On the tail of the tranny, opposite side to the gear linkage, there is a solenoid.

If memory serves, what you are describing is a flat disc with two terminals sticking rearward. This isn't a solenoid, but a pressure switch. It is for the anit-creep unit and can be ignored.

[Polle]

this is correct indeed, thanks for the respons guys!!!