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Replacement Alternator

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Old Feb 3, 2010 | 12:32 PM
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Default Replacement Alternator

My alternator on my 1973 454 went out and I purchased a replcament from auto zone. The replacement does not seem to line up with the pully on the engine. Do I need to get a spacer or a different pully for the alternator. Thanks in advance for any help.
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Old Feb 3, 2010 | 12:54 PM
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Depends how for out of line it is, although not the greatest way, if it is not too bad, try a spacer.
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Old Feb 3, 2010 | 01:11 PM
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When I bought a replacement for my 72 454 the O'Reilley's manager swapped my original pully onto the new alternator.

cc

PS, if that was your original alternator, why not have it rebuilt? I got mine done for $75.00 and they restored the case also. Plus, they were able to upgrade it from 63 amps to 100.

Oops, that should have been 61 amps.

Last edited by CCrane65; Feb 3, 2010 at 03:28 PM. Reason: Correction
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Old Feb 3, 2010 | 01:18 PM
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Unfortunately it was not my origional and I did not realize that I needed to swap the pulley. Can I buy a pulley from someone that will line up?
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Old Feb 3, 2010 | 01:19 PM
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Originally Posted by rathfam5
Unfortunately it was not my origional and I did not realize that I needed to swap the pulley. Can I buy a pulley from someone that will line up?
You'll probably need to watch for a used one on ebay or on the parts for sale forum.

I recommend making sure you buy parts form someone who understands these old cars. Auto Zone is just a parts lookup/exchange store. They only know about ricers.

Last edited by CCrane65; Feb 3, 2010 at 01:21 PM.
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Old Feb 3, 2010 | 02:06 PM
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I don't think they "know" about any cars. I will buy 'odds & ends' from them, if no one else has a specific item. But, I never buy any replacement parts from them.
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Old Feb 3, 2010 | 02:12 PM
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Try Doc. Rebuild or Paragon, they are both listing GM pullies.
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Old Feb 3, 2010 | 02:54 PM
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I just ordered the pulley from paragon. I hope it solves my problem. Thanks for all of the help!
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Old Feb 4, 2010 | 12:56 AM
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Originally Posted by CCrane72
When I bought a replacement for my 72 454 the O'Reilley's manager swapped my original pully onto the new alternator.

cc

PS, if that was your original alternator, why not have it rebuilt? I got mine done for $75.00 and they restored the case also. Plus, they were able to upgrade it from 63 amps to 100.

Oops, that should have been 61 amps.
Who rebuilt your alternator?
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Old Feb 4, 2010 | 07:55 AM
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I have had horrible luck with Autozone starters and alternators. I always buy the Delco rebuilt from either Advance, O'Rieleys, or the local Delco store. It is worth the extra money, they do last better. I had an '89 IROC Camaro. Alternator went out. I went through a house brand rebuild evey 6 months for 3 of them. Finally got a Delco built and it went 2-3 years until I sold the car to an aquaintence, and is still there now-6 years later. It was a junky CS130, but that is another post.
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Old Feb 4, 2010 | 11:39 PM
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Originally Posted by 71406
Who rebuilt your alternator?
I had it done locally at Automotive Electric Service. You can contact them at 1-800-861-4225. By the way, they turned my alternator around in one day.

cc
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