Neg. Battery Cable

roadrunnerh said

Also, why do the older mopars have only one negative connection (to the block) and this has one going to the firewall as well?

Click to expand...

I never keep track of exact "restore correct" routing, but ALL vehicles must have the frame / body / engine / battery bonded. There should be (have been) a pigtail either at the battery to the body, or another cable / strap from the engine to the body.