I got a 65 fury given to me and in the trunk is a set of disc brake c body spindles and rotors. I want to put them on, but can't tell what year they are in order to buy new bearings and calipers for them
Is there a casting or something I can go off of?

Well, if you do have Original"C" body parts, they are BUDD disc brakes, from any 65-68 "C" body car.
You just can't go to the parts stores and order up those "C" body disc brake parts.
But there are one or two ebay vendors that sell stuff, but you had better not be shocked at the $$$$$$$ your gonna, hafta, be spending.

If your lucky maybe you have 69-73, single piston disc brake parts.
Post a couple of pictures of what you have, and then lots of people could determine what you have.

If they are Budd, the calipers will have 4 pistons. Everything is hard to get and $$$$. The 69-73 style is a single piston. 69 to early 72 uses the same wheel bearings as your drum brake spindles do. The late 72 and 73 spindles use bigger bearings and a less expensive unicast rotor but the earlier one isn't that much more and nothing close to what a set of Budd rotors will set you back.

Make sure what you have is in fact for a Cbody. They all look the same to me when they are laying loose on the floor if I don't have a known one to compare.

Kevin

If your spindles have 4 bolt holes (Budd) to attach the ball joint, toss them into the nearest scrap bin. Even NOS ball joints, IF you can find them are sky high and longevity is really short. They ran out of originals decades ago, ALL the reproduced NOS ones are crap.

You'll be ahead in all aspects with the '69 - '73 setup.

Robert

Simple, take a picture of them and someone on here will tell you what they are. Or, measure the bearing races and look it up. Or, take the bearings out and look at the numbers stamped on them.