E brake cables.

71 duster was 7-1/4 diffy that got sold complete with leaf springs and tires.lol I needed new parking brake set. My collector if you will where the 2 cables meet have 2 holes, one for a large ball and one small ball. The new cables arrived, both with large balls pardon the pun. also the pass side is 2" longer at the collector where the 2 cables join. This may just be money down the tubes, where can i get a correct set of cables for this car now with an 8-3/4 with 10" drums.