Look like CPP spindles. That is what I put on my 1964 Skylark. 2 inch drop. I have Wilwood brakes. Let me know what questions you have. I can pull a wheel and take pics or whatever you need.
Looks like they have the provision to mount the steering arms in one location (lower two 1/2" holes) and the caliper abutment bracket in the other (one of the upper (1/2") spindle holes depending on which side of the car it's on), the other upper (1/2") hole is unused on each spindle.... that's if they are drop spindles. The top caliper abutment bracket (5/8") hole is attached to the very top center spindle hole. http://ssbrakes.com/files/2015 Instructions/a123ds.pdf Larry
Thanks everyone for the help got it all done just need to finish running the new brake lines they were 2 inch lowering spindles the brand was right stuff.
