71 C20 Front Brake Hoses?

[newbraunie]

I am having a difficult time locating a proper set of replacement front brake lines for 1971 C20 with disc brakes. Most of the parts houses do not even show an application for this part. RockAuto shows AC Delco 18J1837 & 181J836 as correct application. I ordered these and they are 3/4-1" too short?? These also cross reference these same lines as correct for C10 trucks.I have tried Napa and O'Reilly and they pull up the same application. I hate to reinstall the old set of lines but see this as only option at this point. Surely this could not be a discontinued part?? Any advice would be appreciated!!