74 Duster Fusible Link
You can try the 72 manual, hard to know exactly what the changes are, but it should be close enough for diag work if you're solid with electrical work.
Service Manuals – MyMopar
To follow up on your posts some.
1. Don't keep burning up fusible links, if you have to make a repair again consider an appropriately sized maxifuse, this way it's easy to replace if you pop one.
2. Fusible link comes off the battery post on the starter relay, goes through the bulkhead, through the amp meter and then to a junction that feeds a lot, all of the below is before you turn the key on.
- Ignition
- Battery feed side of fuse box (hazards, tail lights, dome light, lighter)
- headlight switch
- horn
Start with something simple, does it blow before you turn the key or after? Help narrow down where the short is.