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weeeeeeeeeeee 4.10s rock

This is a discussion on weeeeeeeeeeee 4.10s rock within the Drivetrain forums, part of the LSx Technical Help Section category; Like I posted before, I installed my 4.10s this morning...should have done this a long time ago. Didn't take long ...

  1. #1
    Member keliente's Avatar
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    99 Firebird Formula

    weeeeeeeeeeee 4.10s rock

    Like I posted before, I installed my 4.10s this morning...should have done this a long time ago. Didn't take long to get them in. I was surprised to see a torsen staring at me when I removed the rear cover, I could have sworn this car had an auburn. I had a slight heart attack because I heard you need a paddle kit to make the 4.10's work in a torsen, but for whatever reason, my paddle slid back in like butter

    ps. If you have traction control remove the rear sensors from the backing plate...it allows the extra 1/8" you need to push the axles in & drop the c-clips.

    I went straight to the track afterwards

    It is like driving a new car. Lost a good 3-4 tenths in the eighth. Sixty foots 1.9X all night with a best of 1.92 on street tires (not sure why folks say its impossible to launch on 4.10s).

    My car's just a bolton car fyi, 00 M6, lid/longtubes/catback, SFCs, tune, spec stage 2, and now the 4.10s.

    My best run was a 8.3 @ 86 mph. I know it has more in it, I was riding the rev limiter all night (have it set low). Going to bump it back tomorrow and try for some 8.20's.

  2. #2
    230,55,147 91Z28's Avatar
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    Everyone tells me I should get 4.10s when I order my 12 bolt but dammit, I just can't bring myself to do it, even though everyone says the T56 and 4.10s are a great combo.

  3. #3
    Senior Member issues's Avatar
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    murdered out 06 z06

    4.10s should have came stock in the m6 f bodies
    they are great

  4. #4
    Beast
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    Where is everybody getting their 4.10's? I plan on that being the next mod.

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    230,55,147 91Z28's Avatar
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    I think 4.10s in a 10 bolt is asking for trouble though, seeing how easy it is to break one with stock gear ratios. Hell I know a guy who broke one with a V6.

  6. #6
    Faster than....
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    Try them in a Moser 9 " with Detroit Locker, and slicks....they are even better.

    Good choice on the 410's

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    dot COM EVL LS1's Avatar
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    two tone
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    i had 4.10s in the 10bolt on street tires after got rid of the 12bolt... it was nice with the street tires but didn't put any DRs on there cause it'd blow the rear to hell.

    v2.0 would haul ass though =)~ she's missed..... kinda

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    Detailing + Design third_shift|studios's Avatar
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    if 4.10's were stock, then the amazing gas milage we get would be non-existant.

    kellie, i thought you have to break in a rear end b4 tracking it-i hope you didn't fuck it up!

  9. #9
    Ahh crap... needmorepwr's Avatar
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    Very cool to hear! 4.10's and a 6 speed is such a great combo! Congrats on the quicker ET's!

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    The Herpes of LS1.com Modulistic's Avatar
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    my mileage didnt suffer too bad when I had the 4.10s It averaged down like 2 mpg.

    what was weird was going back to stock from 410s. it really does feel like a totally different car.

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    Senior Member Zboner's Avatar
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    yea gas milege wont hurt that bad in the car just drive it around 65 70 on the expressway and you wont notice it that much, and you should break in a rear end before running it hard.

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    Senior Member Hurley711's Avatar
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    Man I have an M6 and I'm worried about blowing up my rear. I don't track race it, but I do kick some ass on the street occasionally. What to do what to do. 6th gear on the highway sucks ass right now....higher gear ratio will prob make it better huh?

  13. #13
    ryanz400
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    I love the 4.10's on my Z28. Helped me get in the 12's with my basically stock Z28

  14. #14
    Grilled Cheese rocks!!!!! slo4mula's Avatar
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    Quote Originally Posted by Hurley711
    6th gear on the highway sucks ass right now....higher gear ratio will prob make it better huh?
    What sucks about it? are you talking about the gas mileage or the acceleration? 6th isnt meant for acceleration. I get to what ever speed I plan on cruising at then I put it in 6th and set the cruise.

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    Senior Member Zboner's Avatar
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    5th and 6th are overdrive gears your main gears are 1 through 4 for power the other two are cruising gears.

  16. #16
    Detailing + Design third_shift|studios's Avatar
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    My life is a
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    last two posts

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    Member keliente's Avatar
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    99 Firebird Formula

    Quote Originally Posted by dipherentdesign
    kellie, i thought you have to break in a rear end b4 tracking it-i hope you didn't fuck it up!
    I guess techincally you should break them in but I didn't. I drove home, changed clothes, and went to the track. Went to the track again today. 20 or so passes later and they are still fine

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    Senior Member Hurley711's Avatar
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    I realize that the 5th and 6th gears are overdrives and pretty much just for cruising on the expressway, point of my post was that from what I've heard 6th gear can actually be usefull on the highway with 4.10's. I think I remember reading somewhere that the car will pull a little better in 6th with 4.10's

  19. #19
    Grilled Cheese rocks!!!!! slo4mula's Avatar
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    Quote Originally Posted by Hurley711
    I think I remember reading somewhere that the car will pull a little better in 6th with 4.10's
    I'd imagine that is true. It is annoying when you are in 6th and start climbing a steep hill.

  20. #20
    Member keliente's Avatar
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    99 Firebird Formula

    I definitely use 6th a lot more often. On the highway at 70mph I'm turning 2,000 rpms in 6th.

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