3g alternator

foxvert91 · April 25th, 2011, 08:56 PM

Hey guys I am currently on the lookout for a 3g alternator. I know they came on 94-95 mustangs but did they come in v6's as well or just the 5.0's? Also, are they the same amps? Thanks

95tbirdv8 · April 25th, 2011, 09:16 PM

V6 also had the 130 amp after 94 so yea their the same as 5.0

Dap1991 · April 25th, 2011, 09:22 PM

do you need to rewire it or will it hook right up to our 5.0's?

95tbirdv8 · April 25th, 2011, 09:25 PM

you just need to run a power wire from the alternator to your battery and put a fuse or circuit breaker on it. you also need to shave the alternator bracket a little bit to clear the 3g alternator. there is a lot of write ups online

Dap1991 · April 25th, 2011, 09:31 PM

are they usually pretty cheap from a j/y?

95tbirdv8 · April 25th, 2011, 09:35 PM

i paid about $30. oh yea i forgot you need a bolt and a nut because the 3g alternator is not threaded like the fox alternators

Dap1991 · April 25th, 2011, 10:05 PM

wow, alright this sounds great, this summer im definitely picking one up

ryanw · April 25th, 2011, 10:19 PM

some are threaded, but i cant remember which one though

HMUSN · April 25th, 2011, 10:29 PM

I need to pick up one of these. Thanks for the reminder. Damn amp light.

Dap1991 · April 25th, 2011, 11:15 PM

is there anything to check for to make sure its good when you pull it?

ryanw · April 26th, 2011, 12:24 AM

^ most junk yards have a week warranty or you can pay a little more and get a month warranty, well that's the way it is last time i went. The key is to not to buy a part and then wait along time before you install it. So when you buy a 3g alt, install it right away, that way you can return it if it doesn't work....Also alot of junk yards will mark a part that you buy will some sort of paint pen, showing that it was from there junk yard.....dont wipe that mark off until you know it works.

Dap1991 · April 26th, 2011, 12:32 AM

alright that makes sense, this plus the v6 maf will be nice j/y pick ups

95tbirdv8 · April 26th, 2011, 01:01 AM

or if you dont plan on installing it yet take it to a parts store where they test alternators for free

ryanw · April 26th, 2011, 01:16 AM

^^^good point, i didnt think of that

Dap1991 · April 26th, 2011, 02:13 AM

didnt even think of that either thats perfect

cleangtvert · April 26th, 2011, 08:52 AM

dap, look for a car that still has the hood on it or at least doint look like it's been sitting with no hood for a long time. spin the pully on the alt. i can spin mine, and it will continue to spin on it's own for a retarded amount of time. this is a good indicator that you found a good one.
also you need to clip of the plug you will need part of it. doint run it through the stock wiring. i used 4 gage welding cable for my charge wire(from alt to selanoid).

Dap1991 · April 26th, 2011, 11:05 AM

alright thanks, i wont be getting to this until summer but this is super helpful

April 25th, 2011, 08:56 PM	#1
foxvert91 Newbie Join Date: Feb 2011 Posts: 30 iTrader: 0 reviews	3g alternator Hey guys I am currently on the lookout for a 3g alternator. I know they came on 94-95 mustangs but did they come in v6's as well or just the 5.0's? Also, are they the same amps? Thanks

April 25th, 2011, 09:16 PM	#2
95tbirdv8 Enthusiast 1990 mustang gt Join Date: May 2010 Location: houston, tx Posts: 627 iTrader: 0 reviews	V6 also had the 130 amp after 94 so yea their the same as 5.0 __________________ Burning Rubber in the 5.0 http://www.youtube.com/watch?v=mKGSmRkKQcM95 95 mark8 lsc 95 tbird v8 90 mustang gt 07 silverado v8 08 yamaha r6 to be continued........ foxbodyperformance.com is the way to go

April 25th, 2011, 09:22 PM	#3
Dap1991 Hardcore Enthusiast 91 GT 90 LX 5.0 Join Date: Aug 2009 Location: youngstown, ohio Posts: 1,025 iTrader: 0 reviews	do you need to rewire it or will it hook right up to our 5.0's? __________________ 1991 GT- All Stock 1990 LX 5.0- CAI, Shorty headers, flowmaster, Tubular Upper and Lower Control arms, Tokico HP series, Eibach Springs

April 25th, 2011, 09:25 PM	#4
95tbirdv8 Enthusiast 1990 mustang gt Join Date: May 2010 Location: houston, tx Posts: 627 iTrader: 0 reviews	you just need to run a power wire from the alternator to your battery and put a fuse or circuit breaker on it. you also need to shave the alternator bracket a little bit to clear the 3g alternator. there is a lot of write ups online __________________ Burning Rubber in the 5.0 http://www.youtube.com/watch?v=mKGSmRkKQcM95 95 mark8 lsc 95 tbird v8 90 mustang gt 07 silverado v8 08 yamaha r6 to be continued........ foxbodyperformance.com is the way to go

April 25th, 2011, 09:31 PM	#5
Dap1991 Hardcore Enthusiast 91 GT 90 LX 5.0 Join Date: Aug 2009 Location: youngstown, ohio Posts: 1,025 iTrader: 0 reviews	are they usually pretty cheap from a j/y? __________________ 1991 GT- All Stock 1990 LX 5.0- CAI, Shorty headers, flowmaster, Tubular Upper and Lower Control arms, Tokico HP series, Eibach Springs

April 25th, 2011, 09:35 PM	#6
95tbirdv8 Enthusiast 1990 mustang gt Join Date: May 2010 Location: houston, tx Posts: 627 iTrader: 0 reviews	i paid about $30. oh yea i forgot you need a bolt and a nut because the 3g alternator is not threaded like the fox alternators __________________ Burning Rubber in the 5.0 http://www.youtube.com/watch?v=mKGSmRkKQcM95 95 mark8 lsc 95 tbird v8 90 mustang gt 07 silverado v8 08 yamaha r6 to be continued........ foxbodyperformance.com is the way to go

April 25th, 2011, 10:05 PM	#7
Dap1991 Hardcore Enthusiast 91 GT 90 LX 5.0 Join Date: Aug 2009 Location: youngstown, ohio Posts: 1,025 iTrader: 0 reviews	wow, alright this sounds great, this summer im definitely picking one up __________________ 1991 GT- All Stock 1990 LX 5.0- CAI, Shorty headers, flowmaster, Tubular Upper and Lower Control arms, Tokico HP series, Eibach Springs

April 25th, 2011, 10:19 PM	#8
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	some are threaded, but i cant remember which one though __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

April 25th, 2011, 10:29 PM	#9
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	I need to pick up one of these. Thanks for the reminder. Damn amp light. __________________

April 25th, 2011, 11:15 PM	#10
Dap1991 Hardcore Enthusiast 91 GT 90 LX 5.0 Join Date: Aug 2009 Location: youngstown, ohio Posts: 1,025 iTrader: 0 reviews	is there anything to check for to make sure its good when you pull it? __________________ 1991 GT- All Stock 1990 LX 5.0- CAI, Shorty headers, flowmaster, Tubular Upper and Lower Control arms, Tokico HP series, Eibach Springs

April 26th, 2011, 12:24 AM	#11
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	^ most junk yards have a week warranty or you can pay a little more and get a month warranty, well that's the way it is last time i went. The key is to not to buy a part and then wait along time before you install it. So when you buy a 3g alt, install it right away, that way you can return it if it doesn't work....Also alot of junk yards will mark a part that you buy will some sort of paint pen, showing that it was from there junk yard.....dont wipe that mark off until you know it works. __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

April 26th, 2011, 12:32 AM	#12
Dap1991 Hardcore Enthusiast 91 GT 90 LX 5.0 Join Date: Aug 2009 Location: youngstown, ohio Posts: 1,025 iTrader: 0 reviews	alright that makes sense, this plus the v6 maf will be nice j/y pick ups __________________ 1991 GT- All Stock 1990 LX 5.0- CAI, Shorty headers, flowmaster, Tubular Upper and Lower Control arms, Tokico HP series, Eibach Springs

April 26th, 2011, 01:01 AM	#13
95tbirdv8 Enthusiast 1990 mustang gt Join Date: May 2010 Location: houston, tx Posts: 627 iTrader: 0 reviews	or if you dont plan on installing it yet take it to a parts store where they test alternators for free __________________ Burning Rubber in the 5.0 http://www.youtube.com/watch?v=mKGSmRkKQcM95 95 mark8 lsc 95 tbird v8 90 mustang gt 07 silverado v8 08 yamaha r6 to be continued........ foxbodyperformance.com is the way to go

April 26th, 2011, 01:16 AM	#14
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	^^^good point, i didnt think of that __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

April 26th, 2011, 02:13 AM	#15
Dap1991 Hardcore Enthusiast 91 GT 90 LX 5.0 Join Date: Aug 2009 Location: youngstown, ohio Posts: 1,025 iTrader: 0 reviews	didnt even think of that either thats perfect __________________ 1991 GT- All Stock 1990 LX 5.0- CAI, Shorty headers, flowmaster, Tubular Upper and Lower Control arms, Tokico HP series, Eibach Springs

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Thread Does motorcraft makes a 3g alternator for 5.0...? \| Forums at Modded Mustangs \| BoardReader	This thread	Refback	November 4th, 2011 05:23 PM

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April 26th, 2011, 08:52 AM	#16
cleangtvert Enthusiast 1991 gt vert Join Date: Oct 2010 Location: st louis Posts: 727 iTrader: 0 reviews	dap, look for a car that still has the hood on it or at least doint look like it's been sitting with no hood for a long time. spin the pully on the alt. i can spin mine, and it will continue to spin on it's own for a retarded amount of time. this is a good indicator that you found a good one. also you need to clip of the plug you will need part of it. doint run it through the stock wiring. i used 4 gage welding cable for my charge wire(from alt to selanoid).

April 26th, 2011, 11:05 AM	#17
Dap1991 Hardcore Enthusiast 91 GT 90 LX 5.0 Join Date: Aug 2009 Location: youngstown, ohio Posts: 1,025 iTrader: 0 reviews	alright thanks, i wont be getting to this until summer but this is super helpful __________________ 1991 GT- All Stock 1990 LX 5.0- CAI, Shorty headers, flowmaster, Tubular Upper and Lower Control arms, Tokico HP series, Eibach Springs

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