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Old 02-12-2013, 02:53 AM
Jacket's Avatar
Jacket Jacket is offline
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Join Date: Feb 2007
Location: Lafayette
Posts: 4,443

If you are always carrying a spare anyway, then why switch? GM's might have better availability at a parts store, but not in a group of Toyota wheelers.

Just playing devil's advocate....

Forget the new alternator and just buy a white 100 series....
- Matt
1976 FJ40 - green and mostly stock
1996 FZJ80 - not so stock
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Old 02-12-2013, 05:51 AM
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DaveInDenver DaveInDenver is online now
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Join Date: Jun 2006
Location: Larimer County
Posts: 7,559

I'd go with a GM alternator. I ended up getting a bracket from a dude on Pirate who makes them. Although, I have not painted and installed it yet. It's designed for the one-wire 12SI, 10SI and CS130 type cases with V-belts. The CS130 is typically 105-amp and found on late 80s GM V8 RWD cars and trucks, usually ones with a 5.0L 4 barrel, for example a 1988 Caprice.

If you want to stay sorta true, the 12SI was 94-amp and sometimes uses 8mm mounting hardware. That was on a ton of 1984-1987 GM cars, for example the 1987 Buick Regal 5.0L had the metric 12SI.


I'm waiting until my alternator gives up because my Optima finally died recently and that dinked the checking account replacing it. No sense removing perfectly functioning alternator at this point. That battery was an Aurora-made Optima blemish that was at least 8 years old. Got my money's worth out of it. Plus I figure if my stock 23 year old 60-amp OEM charging system kept that Optima alive that long, it does not deserve to be unceremoniously tossed.
'91 Pickup - Imelda / '08 Tacoma TRD - Donna
'09 Kawasaki KLR650
'98 Rhygin Juke SS / '12 Gunnar Rockhound 29 / '16 REEB Dikyelous

"Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security. " --Albert Einstein
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Old 02-12-2013, 06:03 PM
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Rzeppa Rzeppa is offline
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Join Date: Aug 2005
Location: Kittredge CO, USA
Posts: 6,211

There is yet another paradigm to the philosophies being debated here.

Whenever I see stuff for sale, being parted out for cheap, etc., I snarf it up and pile it in my pile of parts. I don't need it now, but I might some day. Sure enough, when my daughter's 60 seized the smog pump, I had a used spare on the shelf. When Marco needed a roll bar for his 40, I had a spare sitting there ready to go. And so on.

I have never found Toyota parts, even for my old Land Cruisers easier or harder than other makes, like when I had a Chevy van with a SBC 350 in it. I can get a fuel pump or a starter or an alternator for any of my F or 2F powered Cruisers just as easily and quickly at NAPA as I could with the Chevy.

Back to Shawn's original question, I would have my 60 alternator rewound if I needed more juice.

Jeff Zepp
Kittredge CO USA
1971 & 1976 FJ40s, 1978 FJ45, 1987 FJ60
Rising Sun 4WD Club, TLCA #4063
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