View Poll Results: 373 or 411's?

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  • 373

    17 45.95%
  • 411

    20 54.05%
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373's or 410's

This is a discussion on 373's or 410's within the Drivetrain forums, part of the LSx Technical Help Section category; Excellent choice and the 9" is basically bullet proof....

  1. #21
    Junior Member
    Join Date
    Aug 2005
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    Severna Park, MD
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    Excellent choice and the 9" is basically bullet proof.

  2. #22
    Junior Member
    Join Date
    Aug 2007
    Location
    saginaw MI
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    98

    Blue
    2000 Camaro SS Convertibl

    Know this is a bit late, but if you have'nt decided yet, I think I can help. I just had my rear-end rebuilt on my 2000 SS, because it went out. The only good thing was, the mechanic who rebuilt it said, I could switch from the stock 3:46 gears, to a 3:75 or 4:10 gear. I did'nt want to kill my fuel economy so I chose the inbetween gear(3:76), and you DO feel a noticeable difference in take off. It's kind of funny, I was pissed to realize I had to rebuild the rear-end on my car, but I was real happy with the new gear ratio. Not too much overkill in the low end, but definately better than the old ratio, where you had to really gun it to feel anything taking off (OK, it was fast, but lacked that low end grunt).
    It really boggles me, why GM put such a low gear ratio on their stock cars...just CAFE standards?

  3. #23
    Junior Member
    Join Date
    Aug 2005
    Location
    Severna Park, MD
    Posts
    65
    Quote Originally Posted by knoll5150 View Post
    Know this is a bit late, but if you have'nt decided yet, I think I can help. I just had my rear-end rebuilt on my 2000 SS, because it went out. The only good thing was, the mechanic who rebuilt it said, I could switch from the stock 3:46 gears, to a 3:75 or 4:10 gear. I did'nt want to kill my fuel economy so I chose the inbetween gear(3:76), and you DO feel a noticeable difference in take off. It's kind of funny, I was pissed to realize I had to rebuild the rear-end on my car, but I was real happy with the new gear ratio. Not too much overkill in the low end, but definately better than the old ratio, where you had to really gun it to feel anything taking off (OK, it was fast, but lacked that low end grunt).
    It really boggles me, why GM put such a low gear ratio on their stock cars...just CAFE standards?

    Because the stock rear ends are a "pencil thin" 7.5 inch ring gear in the Gen 4 F-bodies. The taller gears require a beefier rear end, e.g. 8.5 inch or greater ring gear for durability when installing 3.73 or greater gears.

  4. #24
    Senior Member INMY01TA's Avatar
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    Jan 2006
    Location
    The great red state of MD.
    Posts
    5,755

    Black
    2001 Trans Am (sold)

    Quote Originally Posted by knoll5150 View Post
    I did'nt want to kill my fuel economy so I chose the inbetween gear(3:76)
    That's a stupid reason. 4:10s hardly effect your milaege at all.

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