switching old air pack to new, what about the plug for lights?

[DeuceNewb]

Swapping out the old long style airpack for the newer style short one. Got everything figured out except the plug, which i assume is for brake lights. The old one has this plug on the front of the airpack. The new short one does not. What needs to be done to make the brake lights work. Obviously when the airpacks were updated there was something done to retrofit the brake lights. How can I achieve this??

 

[Wildchild467]

Is it a 1/8" pipe plug? I have the short style airpack also and I have a hydraulic style brake light switch that screws in there. Also i think the old style airpacks had a plug where you could lubricate the airpack with airtool oil. If you search for brake light switch or airpack, something more may come up. If you are switching to the new airpack, i believe you can still lubricate the airpack by removing the air line on the back of the air pack and squirting some air tool oil in there. I have not done this yet because i still need to research it more for what line to take off. Maybe somebody could chime in with more info on what line we need to take off to put some airtool oil in.

 

[DeuceNewb]

in the pic, you can obviously tell which is the old long and which is new. Look at the front of the airpacks (left side of pics)
the black plastic thing on the front with 2 prongs in it that wires plugged into. The new one doesnt have that

 

[txdodge43man]

Just take the old one off. it unscrews and put it on the new air pack a little tefflon tape keep it from leaking

 

[DeuceNewb]

I thought about that, but our 2 other trucks with the new airpack have nothing there as well, also, i'm pretty sure the thread size in the front of the new air pack is smaller than the long one

 

[glcaines]

I thought about that, but our 2 other trucks with the new airpack have nothing there as well, also, i'm pretty sure the thread size in the front of the new air pack is smaller than the long one

Why not follow the wires in one of the new truck with the new airpack and find the switch that way?