Mike, haven't got a full handle on the Battery Cables with Fusible Links but generally it looks like Fusible Links are often an extra wire from the Positive Battery Cable terminal that is connected to the Alternator so that in the event of a short, the output from the Alternator will be cut. I'm not an expert on electrical circuits so I'm not entirely clear how this works or why it is helpful.
But in the case of what I am seeing, the Negative Cable specified as the SR for the '73 F body 455 is p/n 8907026 and by description found in a GM MPC it includes a Fusible Link.
Obviously, this Cable is SR not OE. Why would GM specify this Cable when the OE Cable did not include a Fusible Link? I have no idea and really doesn't matter.
The Negative Cable in my TA has a Fusible Link wire, cut off. The markings show "DELCO 4SX 30".
See the pix. And then I'll continue in the next post with a pic of a NOS Delco 4SX 30 cable.
|