95 that has a lockup in it already and am wanting to know if a overdrive switch exists and how to install it. My truck won't go into 4th or OD and I've thrown a couple hundred in it already and can't hit the right mark. And I need to travel over interstate in the next couple weeks and I need OD. Any help?

 

You can use a pressure switch to do it but i like to have control over when it goes into od so i just used a toggle switch.

 

Do you have step by step on how to install one? I already have a lockup

 

Anyone? No one knows how to wire an overdrive switch up?

 

The center wire on the transmission is the hot +12 volt wire.

The front wire is the overdrive ground.

The rear wire is the torque converter lock-up ground

 

Is there a way to do it from the O/D switch in the cab .. I dont want to have to climb under truck ... is that possible ?

 

Run a toggle from the cab to your o/d wire comin out of trans. Hot wire from batt to toggle in cab to front wire on trans plug. Thats the o/d wire.

 

Ok had a brain fart on the first post sorry. Run a hot wire from battery to your center wire on trans connector located on driver side half way back on trans. The wire to the back of the truck is for Torque Converter Lockup. The wire facing the front of the trans is your O/D Wire. Run your wire into the cab to a toggle switch then to a good ground. Intake grid heater ground works great. flip the switch whenever you want O/D its that easy.

 

So I must not be wiring mine right cuz when I hit the switch nothing. What wire or wires do I tie into and just connect them to a ground or a hot wire 😫