Gear Thread

Discussion in 'General Tech' started by [email protected], Sep 14, 2006.

  1. GeeTeeStang

    GeeTeeStang Active Member

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    Got my 4.10s installed and test drove it today, definately worth the money, feels like a whole new car :headbang:
     
  2. mygreengt

    mygreengt Legend

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    i just got my 4.10s and a 23 tooth speedo gear and mine is off 10-15 mph
     
  3. Slykin

    Slykin Well-Known Member

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    Ok, so I drive about 10miles per day and never get over 65 miles per hour but I wouldn't mind having "decent" mileage on the highway for trips. I currently get 16-26 MPG depending if i'm in town or perfect highway driving.. What would 3:73's do to my mileage? I ask because my dad doesn't want my mileage plummeting. I need some real numbers here please.
    Thanks- Travis
     
  4. atrainsgt

    atrainsgt Well-Known Member

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    Maybe 1-2mpg on the highway. In town you might pick up some mpg. In my gt I went from 2.73's to 3.73's and only lost about 1 mpg on the highway but I picked up 2mpg in town. I have 4.30's in my Mach 1 and it gets better gas mileage than my GT did.
     
  5. Slykin

    Slykin Well-Known Member

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    Thanks man, that's what I was looking for.
     
  6. Venom351R

    Venom351R Legend

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    I have 3.73 now but am getting some 4.10's put in this spring.
     
  7. DarsyRyyan

    DarsyRyyan New Member

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    Sorry guys I simply don't have time to read this all right now because I am at work, so I'll answer this now, then read it when I get home.

    How can you tell if your car has gears. My speedo is off, and my bf seems to think riding along with his car and seeing what RPM were at if I'm lower it has lower gears or higher my gears are higher than his stock ones, which sounded like a good idea butttt he has a cobra and it's a 99. so don't they have the same gears stock anyway which wouldn't that make them off on RPM riding side by side anyways? I mean I could be wrong but I'm just checking.

    Also what I was asking before I went off on my tangent. How do I find out what gears are in it? Any simple way?
     
  8. switch96

    switch96 Well-Known Member

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    '96-'98 GTs came with all of these: 2.73, 3.08, or 3.27. Your differential originally had a tag, if it's still there it will say what you have.

    '99 Cobras had 3.27's.
     
  9. DarsyRyyan

    DarsyRyyan New Member

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    But if the guy who owned it before me switched them is there a way to tell?
     
  10. switch96

    switch96 Well-Known Member

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  11. Sinned83

    Sinned83 Well-Known Member

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    I think my car has original gears is there a way I can tell by the speed and the rpm's. A buddy told me if im in 4th gear at 60 mph and the rpm's are around 2k then there stock. any truth to this?
     
  12. switch96

    switch96 Well-Known Member

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  13. Slykin

    Slykin Well-Known Member

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    Find out how many times the driveshaft spins compared to one turn of your wheel. Oh, and I have 2:73's in my 5speed 94 GT.. I hate them.
     
  14. aarons_4six

    aarons_4six New Member

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    ive got a 96 gt and was planning to put 4.10's in, my dad had a 95 with 3.73's. he thinks its going to be too much and im not going to like it. we have a friend who is a ford tech and mustang guy himself- hes owned em all it seems- and he said 4.10's will be real good on the car. i dont daily drive it, its a weekend toy/red light racer/family cruiser on good weather days. whats you guys take on my situation?
     
  15. switch96

    switch96 Well-Known Member

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    I have 4.10s and highly reccomend them. There are a lot of different opinions between 3.73's and 4.10's. If you're staying off the interstate, 4.10's are the general consensus. My 4.10s in my 4v put me at ~110mph at the top of 4th at the trap in the 1/4 mile. When I get my T-56 I'm going to 4.30's!
     
  16. AaRoN

    AaRoN Legend

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    The gear calculator link and counting driveshaft rotations compared to tire rotations are your best bet.
     
  17. Win

    Win Legend

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    I love my 3.73's
     
  18. ohno50h

    ohno50h New Member

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    i just got my 373 installed last night, i only went for a little rip so far but what a difference. i would highly recommend 373 for 5.0ls
     
  19. 96-Pi_stang

    96-Pi_stang New Member

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    Have a 96 gt 4.6. I daily drive it and am on the highway sometimes. I do street race though.. What do you guys think I should roll with 3.73s or 4.10s?
     
  20. Venom351R

    Venom351R Legend

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    well since this thread has been bumped all I have to say since my last post is that 4.10's are awesome!!!! :)