I have a 14 bolt from a 76 Burban and I need the parking brake to work. I'm going to be moving to Wyoming for school and will be frequenting the Colorado mountains, so I need it to park safely. Now, it needs cables. The parking brake cable design changed in 1984. I ordered cables from the later version for my year thinking, "The ends prolly didn't change, so they'll work." Well, I'm wrong... Do I then need backing plates from the newer axle to get the cables to work?