Does anyone know where i can get a cheap adjustable drag link bar for my 74 bronco? Maybe from something in a junk yard, if not how makes the best one?

This depends on what steering set up you have. Power? What box...Inside or Outside the frame. Regardless, you can get a 78-79 Bronco, F150-250 tie rod and drag link from a yard...or just drag link. Then cut it to length and thread it. Machine shop can do this. If you have to have adjustable...cut it in half and add an adjusting sleeve.

But...What I recommend is this... The tie rod on a EB sits in a spot where it gets hit and bent easily. You can move above the knuckle several ways...but the best two...IMHO...are doing the BCbroncos.com sleeve deal or the performanceunlimited.com heim end deal. Check out both their sites. The latter is more money. I have have it...like it...but would make it myself in the future. If you are not wheeling much and just want to adjust for a recently aded lift, cut the stock one and add an adjusting sleeve.

Last option is Wild Horses...$$$ and designed for F100 box on inside of frame.

but can i move the tie rod up with drums in the front

I haven't done that, but I would think you would be able to. I can't see the drum getting in the way, but maybe. Email BCbroncos.com. They can tell you.

Have you been told otherwise.

I have 2 that are different lengths let me know how long you need and I can figure out a price.
Send me an email with the info to stmclean@juno.com I haven't had much time to get on here lately so I am unsure I would remember to check back.