Title pretty much says it all. I have a rear disk setup on my 14-bolt that I am in the process of installing and want to use rear disks that keep the e-brake. I found a set of calipers on e-bay from the 79-85 El Dorado. Can I use these without problems? Everything I have read says the 76 - 78 Caddy calipers will work but why only those few years. Is it a clearance issue or what? I plan on running at least 16" rims or bigger if that helps. Thanks in advance for the help.