Alternator replacement - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**pdxhall** · 05-09-2022, 12:43 PM

The alternator finally died in my truck. This came with the serpentine belt system from a '79 Chev truck. If it is the original alternator it is about 40+ years old. The problem is this alternator is now obsolete so I need to know if there is anything I need to do to put in newer 1 wire unit? The old one has a separate plug in for a jumper wire and a wire to the volt gauge. How would I hook up the meter on a newer alternator

**The Rocknrod** · 05-09-2022, 04:36 PM

Have you checked Summit? - https://www.summitracing.com/search/...e%3Aserpentine
And if I were you I'd have this moved to the electrical section - http://67-72chevytrucks.com/vboard/f...splay.php?f=64
Hope this helps.

urmyboyblue · 05-09-2022, 06:31 PM

Your comments contradict each other. A 1979 chevy small block did not have a serpentine belt- those came out later in the 80's. It is possible that it was swapped at some point, but who knows. Either way, does this have V belts or is it serpentine? Here is a site that helps you identify the alternator you have. If you swap the same "frame" of alternator, it should bolt right in.

https://www.americanautowire.com/vie...alternator.%20

05-09-2022, 12:43 PM	#1
pdxhall Senior Member Join Date: Mar 2011 Location: Tucson, Arizona Posts: 2,087	Alternator replacement The alternator finally died in my truck. This came with the serpentine belt system from a '79 Chev truck. If it is the original alternator it is about 40+ years old. The problem is this alternator is now obsolete so I need to know if there is anything I need to do to put in newer 1 wire unit? The old one has a separate plug in for a jumper wire and a wire to the volt gauge. How would I hook up the meter on a newer alternator __________________ Sanity'66 http://67-72chevytrucks.com/vboard/s...d.php?t=515110 Long bed, Fleetside, Small back window I've Done So Much, With So Little, For So Long, That Now I Can Do Anything With Nothing.

05-09-2022, 04:36 PM	#2
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Alternator replacement Have you checked Summit? - https://www.summitracing.com/search/...e%3Aserpentine And if I were you I'd have this moved to the electrical section - http://67-72chevytrucks.com/vboard/f...splay.php?f=64 Hope this helps. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

05-09-2022, 06:31 PM	#3
urmyboyblue Registered User Join Date: Feb 2015 Location: Montevallo, AL Posts: 272	Re: Alternator replacement Your comments contradict each other. A 1979 chevy small block did not have a serpentine belt- those came out later in the 80's. It is possible that it was swapped at some point, but who knows. Either way, does this have V belts or is it serpentine? Here is a site that helps you identify the alternator you have. If you swap the same "frame" of alternator, it should bolt right in. https://www.americanautowire.com/vie...alternator.%20



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