It is VERY nice but 72's had quite a few detail varibles compared to the 71's I've looked at.

In particular, I have dissasembled 3 sets of original KH disc brake assemblies, I bought all 3 as ancient greasey relics still all bolted together with grime and rust. One is from a reliable low mile car that PROBABLY had it's original ball joints, but I can't be 100% sure, the other 3 looked so old that they PROBABLY are original as well but I have no real evidence. The more reliable history pair have lower ball joints with "made in Canada" cast into the arm. Another set I have has "Made in USA", and the 3rd set has niether, just a number and LH/RH castings. So which ones, or which one(s) are correct?