Help Please Alternator Ground Question

[New2chevy]

OK my alternator has a negative cable, from the battery, bolted to the back of it.

Is this correct?

I thought the alternator is already grounded, via its own casing, since it is bolted to the engine (bracket), which is grounded.

Should I instead ground this "extra" cable to the chassis, even though there is another ground cable from the battery already attached to the chassis?

Thanks for anyone who can help here.

[firebird_1995]

I've only seen a positive cable on an alternator unless it was an old school Chevy with the ground bolted to the bracket.

[chile]

Actually thats fine. Making sure the alternator is extra ground is ok. I actually have about 4 extra grounds on my car. One of them is to the alternator.

[Chris]

Extra ground is good to help prevent voltage drop

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[New2chevy]

OK, so I guess I'll keep it how it is. Just wanted to make sure it isn't messing with my electrical system.

Thanks for your replies guys.