The calipers are from a 68-73 Mustang or Cougar (or similar Ford)  The booster is a Bendix, which came out in mid 69.  I cannot tell from the picture whether the end of the booster input shaft is curved or straight.  If it is curved, I would narrow the booster down to a 1969 model.  If that is the case and no one has been switching parts around, the brakes are probably 69 as well.  68-69 spindles use the same size tie rod as each other, but larger than a 65-66.  If they are 70-73 brakes, they have an even larger tie rod hole and a larger diameter spindle axle, requiring A12 and A13 bearings instead of the A2 and A6 like the 65-69 uses.

Be advised that using those spindles makes the front end steer different than stock because the radius arms point more to the center of the car than the 65/66 does.  Read my GRANADA installation page for more info. You will have to trim tie rods and adjusting sleeves just same as if you were installing a Granada spindle.  Spindles are nearly identical.

Depending on what year they are, and if your car has manual or power steering and is V8 or L6, you may or may not be able to use the tie rods that are same year as the spindles.  I do have adapters for that purpose.  They will allow fitment of your tie rods into those spindles but will NOT correct the bumpsteer issues.

If you can get the part number that is cast onto the vertical part of the spindle, we can put the mystery to bed.

That booster will not fit your car, so use it as a core.

I can't read all of the number but Ford Logo something USA C80A or)G80A  then 9107C  56 

 

C8 casting tells me the spindles are 68-69, used on both years.  Booster, if from same car, tells me it is all 69 since it has the curved rod.  That is only year that booster would have been on a Mustang or Cougar.  On a 64-1/2 Mustang V8 with power steering, you cannot just remove the power steering valve from the center link like you can on a 67 or later.  You can use the power steering setup as it is, use a 68-69 tie rod on the passenger side and one of my TRB-6567 adapters on the driver side (or use adapter on both side with the 64-1/2 tie rods.   OR if you want manual steering, replace the center link, idler arm, driver side inner and outer tie rods and driver side adjusting sleeve with manual steering linkage.  Or just buy a rack&pinion setup.

When you put new pads on the brakes, be sure to replace the rubber sleeves that fit around the mounting bolts.

Ackerman angle on those spindles is different than your car, so expect some additional bumpsteer and adverse steering and alignment issues.