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Thread: questions

  1. #1
    BURN RUBER NOT YOUR SOUL M-dubb's Avatar
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    questions

    whats do 3.55 do
    whats do 3.73 do
    whats do 4.10 do
    what the difference.
    stock 88 gt comes with what size rear end.




    Mike.

  2. #2
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    The difference is essentially the speed you'll be able to go in each gear. The higher the numerical value for the rear end, the lower the speed each gear will be able to reach. Generally speaking, the higher the numerical value for the gear, the better your acceleration will be - however you'll have to shift more. If you're a slow shifter/bad shifter, you're not going to want to do that.

    With a numerically higher gear, you're also less likely to be caught in a bad spot for your car to accelerate from on the street.

    Example in my 03 cobra it has 3.55's stock (but has a different gearbox & redline than your car, so my speeds are going to be different)
    1st = 45 mph, 2nd = 72mph, 3rd = 105mph(?) 4th = 130mph

    If I put in a set of "shorter gears" (numerically higher), then those speeds would come down, and the speed that each gear covers is reduced.
    For arguments sake (I'm making these numbers up), we'll pretend if I put in
    3.73's or something, my car's gear speed would be
    1st = 40mph, 2nd = 66mph, 3rd = 99mph, 4th = 123 mph

    Now with the new "gears" (really just the final drive ratio, rather than new gear ratios for each individual gear), my car would accelerate through each gear a little bit quicker than it would with the stock gears, and now if I'm going from a 35mph roll, 2nd gear would be much more effective, as the RPM would be higher at that speed than it would with the stock gears.

    I hope I didn't confuse you.

    Short and simple; higher gear # means higher RPM at any given speed. The higher the gear number, the greater this effect. You'll also have to get your speedometer recalibrated if you do gears.

  3. #3
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    http://www.mustangforums.com/m_30293..._1/key_/tm.htm
    there is a good read for you too. google is your friend :)

  4. #4
    BURN RUBER NOT YOUR SOUL M-dubb's Avatar
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    what is more effective for street racing?
    and i was thinking about 4.10 gears




    Mike.

  5. #5
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    Quote Originally Posted by M-dubb View Post
    what is more effective for street racing?
    and i was thinking about 4.10 gears
    Somebody with a fox or with experience will be able to tell you better than me - but what I listed above should help you with your decision. Particularly the link.

    If you don't mind shifting more and having the car cruise on the highway at much higher engine speeds, then something that aggressive would be good. There are trade offs with gears that you have to take into account and see what your priorities are. gas mileage, cruising RPM, acceleration, shifting, etc. All that gets gets changed with gears.

    If you're looking for the best thing for "street racing" you might get some different answers depending on how you like to race. From a roll? What speed? from a stop? etc.

    The more detailed the information you give us about what you're looking for, the more everybody can help you

  6. #6
    Senior Member blkp42e's Avatar
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    i like my 373's in my fox on the street.

  7. #7
    Senior Member wick's Avatar
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    Quote Originally Posted by blkp42e View Post
    i like my 373's in my fox on the street.
    Same here. 3:73's are the best all around gear. Some will say go with a 4:10. I dont think they are worth it. Right now driving at 65MPH, I am running about 2200RPM. Thats in 5th gear with a Tremec. Same 5th as a T-5.
    Rob
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  8. #8
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    I had 3.73's in my old fox and loved them.

  9. #9
    BURN RUBER NOT YOUR SOUL M-dubb's Avatar
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    Thumbs up kool

    i never wanted to change the end gears intell this yaer. so are i like what im happy what uall are tell me thanks




    Mike.

  10. #10
    Senior Member frankstang's Avatar
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    My car was an AOD with 4:10 gears. I think this is the perfect gear for an AOD.
    My car is now a T5 and I'm not liking the 4:10's. Especially on the street. I haven't been to the track since the change so I don't know how it'll do.
    I'm thinking of going with 3:55's.
    As for the street racing, I'll spare you the lecture except to say, take it to the track.

  11. #11
    Stangman Stangman's Avatar
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    I used 3.73 gars in both my old Foxes, Also liked them
    2013 GT Premium Auto 3.15 gear
    Flowmasters
    JLT CAI
    American Racing Rims
    SCT Programmer with Bama tune
    12.33@110

    2002 Mustang GT --Sold

  12. #12
    Senior Member wick's Avatar
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    Quote Originally Posted by M-dubb View Post
    i never wanted to change the end gears intell this yaer. so are i like what im happy what uall are tell me thanks

    Huh?
    Rob
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  13. #13
    member 65 Fastback's Avatar
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    Quote Originally Posted by blkp42e View Post
    i like my 373's in my fox on the street.
    Same here, it's a good compromise. The 4.10's make too much noise for normal use. The 3.73's give excellent response and throw you back in the seat!

  14. #14
    Senior Member blizzard's Avatar
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    i'm using 3:27s... cuz i wanna keep some highway speed LOL after i built my engine the stock 2:73s didn't take long to pop btw-i have an extra set 3:27s if anyones looking

  15. #15
    member 65 Fastback's Avatar
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    Quote Originally Posted by M-dubb View Post
    i never wanted to change the end gears intell this yaer. so are i like what im happy what uall are tell me thanks
    Translation please!

  16. #16
    Clean mineralrob's Avatar
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    Quote Originally Posted by Blown302 View Post
    Translation please!

    Yea thats what i was thinking. Mike you should look over what your writing from now on.:D


    02 MG GT
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    Rob

  17. #17
    Clean mineralrob's Avatar
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    I never wanted to change the gears in the rear end till this year. So what i'm asking is?? What gears do you think will be the best. ThANKS.

    Fixed,somewhat lol.:D



    Quote Originally Posted by M-dubb View Post
    i never wanted to change the end gears intell this yaer. so are i like what im happy what uall are tell me thanks


    02 MG GT
    98 SVT Contour SF/MNB #2059
    93 Civic Hatch


    Rob

  18. #18
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    Quote Originally Posted by M-dubb View Post
    i never wanted to change the end gears intell this yaer. so are i like what im happy what uall are tell me thanks
    I feel like I'm trying to read sanskrit...

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