I recently acquired a 74' dana 44 with drums.  I need to convert it to discs.  What if any parts from my current ttb front end in my 94 F-150 can I use?  

Depends is that a dana 44 HD or LD?  

All I know is that it's got 3.50 gears and came out of an early bronco.  Oh yea it's high pinion as well.

 

I donno I think that u might be up the crick on this one man, u might get lucky and be able to use the rotors.  Too bad ur not around where I am I just sold a pair out of a 79 f150 with a 4in lift for 200.00  

that axle wont fit under your rig its to narrow. you need to find a 78-79 bronco,f150,f250 hi pinnion differential.