is it possible to get my overdrive to work without having my speedo working?
i hate the drone at 45 and want it to kick up to the last gear, but i have no speedo cable whatso ever coming from my tranfercase, i think it got ripped off by the previous owner.

 

There are 2 wires that go to the trans to the od selonoid. One has power when the key is on the other just needs to be run through a switch and then to ground. Then whenever you flip the switch od will engage.

 

woohoo cant wait to hook it up now whats the rules with that? Arent you not supposed to use it under like 15-25 mph or your blow **** up?

 

You can switch into od anytime after it shifts 3rd gear. My truck usually goes into od around 35mph.

 

does anyone know if or a part number for the plug that plugs into the trans for overdrive. the socket is yellow and i think has two prongs.

 

Best bet is to take it to a good auto parts store, they will have a pigtail for it.

 

can someone just tell me what side on the od plug on the tranny is hot and ground. if you have the nub face you is it on the right or left prong?

or better yet a pic that shows what side of the plug the blue and what other color wire?

 

I am not sure but a test light should tell you.

 

I was asking about the pins on the trans side. I don't have a plug on the wiring harness side of things so I don't know how the plug is laid out. Unless hooking it up backwards wont blow it up inside the trans.

 

The solenoid doesn't care. Power to one pin, ground to the other.