I've looked at Delco cables on rock auto. They list two part numbers. They are both listed as negative battery cables. One is ~$30 and the other is upwards of $90.

Part number 88987119 - $90

Part number 88864702 - $30.

I found a diagram a few days ago, that I can't seem to find again, that basically showed they were both the same part. So which one is right?