Dana 44s?
 

I have a set on a samurai and they need brakes but I don't know what they came off of. They aren't full size truck width, are 5 on 5.5, passenger side front and center rear.

Scout or wagoneer probably

Yep...The scout brakes are Ford calipers with the stupid spring clip you beat out and the caliper is free. I think the waggy is 6 lug.

44
 

I have this set up in my jeep, 78 scout is what I tell them at the parts store. If it has 8 bolts holding the spindle on its scout knuckles, if it has 6 bolts then it is possibly jeep knuckles with 30 outers. That's how I set mine up, the stub shaft of a scout 44 will go through the 30 spindle

Post a pic the outer knuckle

I would say those are probably Scouts as well. That's what I had under my CJ7

Could be scout center with Gm/Jeep knuckles and f150 hubs for the 5 on 5.5 pattern. Look at the steering arm, scout has a double hole with a long arm on the right. If they are standard knuckles then its most likely 79 ford f150 4x4 brakes.