alternator is bad back up only charges @ hi rpm.
wondering if there's a better up grade that bolts in to our 1968 dart rat .

any thoughts..

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slant six's RULE!
http://www.usajon.com

Use the Nippendenso alternator from a (either, not sure which) 88 or 89 dakota with a V belt pulley. Cut about a 1/4 inch off the front of the alt mounting bracket. Done.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

is this it Charlie ?
http://www.ebay.com/itm/USA-INDUSTRIES- ... 53&vxp=mtr

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slant six's RULE!
http://www.usajon.com

No. It looks like this. They came with either a 2 shive v-belt pully, which is what you need, or a multi groove pully for a serp belt.
http://www.ebay.com/itm/DENSO-210-0138- ... 9d&vxp=mtr

There are a lot of them in salvage yards

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

True! they only charged me $20 for mine off of a 92.

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG

Since the ND alternator is higher output, I'd assume the factory wiring needs to be upgraded??

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Michael Glass. Mopar stuff and some rusty Mopar stuff!
1965 Dodge Dart with 66 Valiant front clip. Other stuff...

Correct

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

Yes, I did the SL6 Dan wiring mod with two 10 gauge wires and circuit breakers.

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG

why would one go with a higher output alternator in general for a non option car

had mine tested @ advanced auto
it was OK

bought a regulator on the 9th and it arrived on the 12th and it charges great..
cheap/new

http://www.ebay.com/itm/251307726713?ss ... 1439.l2649

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slant six's RULE!
http://www.usajon.com

Improved charging at idle, smaller form factor.

Smaller form factor! HA!
Just be glad you ain't got one of the original Mopar 100 amp units! Like my NYB, bulletproof, but man are they big.
I think I do remember seeing them on some slants, maybe fleet use?

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Mattelderca
78 NYB (gone now), two S series, three old Snow Cruisers and a Doo.

I once pulled a 100 amp alternator and the associated brackets and wiring harness off of a 83 Dodge van powered by a slant six. It was in the junkyard and had the 100 amp alternator to provide power for the rear window defrost grid. If memory serves, that grid alone draw 35 amps. I imagine that any fleet vehicles or vehicle that had the rear defog grid would have needed at the very least the 65 amp alternator, if not all the way up to the 100 amp. I recall having seen late 70s slant powered LeBarons with the 100 amp alternator as well.

Canadian spec Mopars got the defrost grid as standard from about 78, like my NYB. So that makes sense!

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Mattelderca
78 NYB (gone now), two S series, three old Snow Cruisers and a Doo.

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slant six's RULE!
http://www.usajon.com

(1) cost
(2) chromed metal does not cool as well as natural finish metal
(3) I prefer externally regulated alternators for purposes of repair