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Thread: 3.73s vs 4.10s?

  1. #1
    Member 2000GT's Avatar
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    3.73s vs 4.10s?

    I know I posted this in the past but wanted to get a new perspective. My gears or carrier bearings are pretty noisy so I am going to go through the differential this winter. A good friend of mine already gave me a set of slightly used 3.73s but I am wondering if I should go to 4.10s. Car Details:
    - 2000 GT (Stock SOHC 4.6)
    - Procharged making about 10# of boost (with supporting mods - mass air injectors, etc.)
    - Stock T-45
    - Currently has 3.73s
    - 17 inch rims (17x8 in the front, 17x10.5 in the back)
    The car will never see the track again. It is strictly a cruiser nor am I worried about MPGs. I keep thinking that if I am going to do the work of tearing it apart, would 4.10s give me a better seat in the pants feel or would it even be noticeable and only see it in the ET? At this point in the car's life, I am just looking for "feel" and not chasing the lowest timeslip. Thoughts?

  2. #2
    Senior Member Ares's Avatar
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    If it was me and being a Mod motor car. 4.10 easy, as it is just a really good all around gear for that motor in a Mustang. I ran 4.30's in mine for years when I drove it every day. Mileage was not an issue. With a 26" rear tire is was near perfect cruising rpm on high way. When I broke my 4.30 set I put in a set of 4.10 which are still in the car. Was about 200rpm difference while cruising.

    I would think you will notice the change and enjoy how it drives.
    Ed...
    2012 Ram 2500 4x4, 5.7 Hemi, leveled, 35" tires
    2004 Mustang GT - Comp Orange/5speed Best 1/4 11.94@113.64, 1/8 7.59@89.48, 1.57 60' - Best 60' 1.51, just a NA 2v

  3. #3
    purveyor of fecal matter Dan B.'s Avatar
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    I've got a set of 4.10's that I'd trade for 3.73's.
    Quote Originally Posted by John4cam View Post
    Ahh fuque
    1985 Ranger--2WD, basic bolt-ons and tires, 11.92 @ 111mph.

    1986 Ranger--2WD, 5.0/T5 swap in progress.

  4. #4
    More RPM !!! Martin0660's Avatar
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    Don’t fear the gear, lol.

    with an overdrive transmission, life starts at 4.10
    Bob Myers ©

    84 Capri RS Turbo -Best 1/8th - 6.24@109, Best 1/4 - 9.82@136...Still only a 4 banger

  5. #5
    Member 2000GT's Avatar
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    Looks like 4.10s might be the winner. Do you think Iíll be ok even with forced induction?


    Sent from my iPhone using Tapatalk

  6. #6
    Not Bad for 367 SAE RWHP Pure Stock's Avatar
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    Quote Originally Posted by 2000GT View Post
    Looks like 4.10s might be the winner. Do you think I’ll be ok even with forced induction?


    Sent from my iPhone using Tapatalk
    Oh yeah! Just kick that pedal and move that lever a little quicker and you'll be just fine
    2011 Mustang GT, MT-82, 3.73's :

    BONE STOCK 12.223@115.18

  7. #7
    Tripedalist yeahloh95's Avatar
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    i checked on youtube and they said 4.10s would be ok too
    Troy
    95 gt 11.3 @ 126
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    PEOPLE HAVE MORE FUN THAN ANYONE

  8. #8
    Not Bad for 367 SAE RWHP Pure Stock's Avatar
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    Quote Originally Posted by yeahloh95 View Post
    i checked on youtube and they said 4.10s would be ok too
    That’s great! Lol
    2011 Mustang GT, MT-82, 3.73's :

    BONE STOCK 12.223@115.18

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