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Thread: Upgraded my alternator

  1. #1

    Upgraded my alternator

    Figured this would be a good place to post this, I'm not running an audio system at the moment but I will be in the future.

    My stock 105A alternator died on me. I'm a bit broke at the moment, I was intending on replacing it w/ a junkyard unit and grabbing an extra spare, but I had a 135A alternator from a Mercury Cougar 2.5L V6 laying around, I figured I'd try it for fitment. It was close enough to work with some new brackets. All it cost me was $20 for a new 2" longer belt

    It's a Ford "3G" alternator. Pretty easy to wire up, used this info here: http://www.fordfuelinjection.com/?p=63

    Pics:







    My only issue is that it will probably interfere with the custom FSTB I am working on, it sits a lot higher. A custom mount bracket might correct this, but I'm not sure I'm willing to invest that much time in this.

    What's interesting, is apparently there is a 200A version of this 3G alt...but I don't think it comes in the same case style used on the 2.5L V6.

    On another note, I'll be beefing up my power & ground lines soon

    Thoughts?
    RIP - 94 GP SE
    DD - 95 GP SE
    Fun - 91 Mercury Capri XR2 Turbo AWD Conversion

    http://www.werbatfik.com

  2. #2
    BXX's Avatar

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    I dunno man, those altenators aren't really know for reliability. They love to just flat out die unexpectedly.
    -08 Kia Spectra SX -2.0L BetaII/Auto
    -07 Chevy Uplander LT -3.9L LZ9/4T65e

  3. #3
    I'm still going to pick up some proper JY replacements, we'll see how this does for the time being. Didn't have to do any permanent mods to make it fit
    RIP - 94 GP SE
    DD - 95 GP SE
    Fun - 91 Mercury Capri XR2 Turbo AWD Conversion

    http://www.werbatfik.com

  4. #4
    BXX's Avatar

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    Oh its cool and all. I can't keep looking at it, looks soooooooooooo weird to me
    -08 Kia Spectra SX -2.0L BetaII/Auto
    -07 Chevy Uplander LT -3.9L LZ9/4T65e

  5. #5
    I just grinded off a bit of the bottom of my STB and it fits. and I have a cs144 on my 3400.

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    rich_e777's Avatar

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    good for a quick fix, i`d still go hunting in the j/k. i found a brand new duralast gold alt. on a wrecked cadillac and only gave $20 bucks for it(over $100 new from autozone) works great and i didnt have any issues with my STB. Never know what you might find

    1994 Olsmobile Cutlass Supreme SL

  7. #7


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    I need to do this myself, but like hell if I'm going out there now. Its cold!
    1995 Buick Regal GS(X) - Heavily modified. /modlist





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