Thread: 3.29s from a GT trans

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  1. #1 3.29s from a GT trans 
    SE Level Member OnlyaGT's Avatar
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    So I have an extra gt trans laying around with the 3.29 gearing and 7/8 chain. I was wondering what machining would have to be done to use the gears, I would just buy a new chain set to go along with it. Pics would be nice if already done before.
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  2. #2 Re: 3.29s from a GT trans 
    I live here. theaceofspades's Avatar
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    I don't think there is any machining to swap gears. I could be wrong
    Quote Originally Posted by theaceofspades View Post
    I now own a stance car parts I just like them DICKS
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  3. #3 Re: 3.29s from a GT trans 
    SE Level Member OnlyaGT's Avatar
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    Holes need drilled
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  4. #4 Re: 3.29s from a GT trans 
    Moderator Russosaur's Avatar
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    Hi Tim
    2019 F150 XL - Make it run 12's N/A
    2012 F150 STX
    - Gonna be a race truck
    02 GT "Slowkar" 180k - Top Swap, Gen V, TOG Headers, 1.9s, e85, 3.25. It's literally the slowest e85 car ever....

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  5. #5 Re: 3.29s from a GT trans 
    SE Level Member OnlyaGT's Avatar
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    Something with holes I guess. Not to sure
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  6. #6 Re: 3.29s from a GT trans 
    I Write E85 Stickies Frosty's Avatar
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    Ok how about we start with asking... what exactly do you want to do with parts from this non-hd 4t65e transmission? Kinda important.
    "Lets just throw more boost at it and see what happens" -Frosty
    The Defacto Guide to tuning your car for E85. Read it and learn.



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  7. #7 Re: 3.29s from a GT trans 
    SE Level Member OnlyaGT's Avatar
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    Put the 3.29s into the hd
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  8. #8 Re: 3.29s from a GT trans 
    Donating Users 16MustangVet's Avatar
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    Ohh god umm have you looked at a set of 7/8s gears vs stock? Stock uses a dual chain setup and as far as I know you cant put a 7/8s chain on stock gears. You need gears and 7/8s chain like the setup from Triple Edge Performance if your trying to run 7/8s setup.

    Zero machining needs to be done but you need new channel plate gaskets once you take the valve body and channel plate off to expose the chain and gears. This can all be done in the car if you lower the cradle enough to get the side cover off. Also while you in there might as well replace the 4th gear clutch pack.

    Have fun the 4th gear clutch pack and channel plate is kind of a fvcker to line up with the channel plate gaskets when doing this in the car........
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  9. #9 Re: 3.29s from a GT trans 
    I Write E85 Stickies Frosty's Avatar
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    Save yourself a lot of time and leave the "GT" transmission together and just swap the differential. That's the only meaningful difference between the two transmissions. HD transmission has the HD differential. Other then that they are exactly the same.
    "Lets just throw more boost at it and see what happens" -Frosty
    The Defacto Guide to tuning your car for E85. Read it and learn.



    I love Decker<3
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  10. #10 Re: 3.29s from a GT trans 
    Donating Users 16MustangVet's Avatar
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    LOL that works too ^^

    No opening up trans. case and screwing something up too.
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  11. #11 Re: 3.29s from a GT trans 
    I Write E85 Stickies Frosty's Avatar
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    Just don't forget to put the park pawl torrington bearing back into place. It falls out almost every time. It will make you super sad when you snap the differential cover to pieces.
    "Lets just throw more boost at it and see what happens" -Frosty
    The Defacto Guide to tuning your car for E85. Read it and learn.



    I love Decker<3
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  12. #12 Re: 3.29s from a GT trans 
    SE Level Member OnlyaGT's Avatar
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    The hd trans is in my car. Have a junk gt trans in drive way! Wanna use the stock 7/8 chain from it
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  13. #13 Re: 3.29s from a GT trans 
    Donating Users 16MustangVet's Avatar
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    umm so it has an after market 7/8s chain in it and 3.29 gears?

    NONE are stock with 7/8s
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  14. #14 Re: 3.29s from a GT trans 
    SE Level Member OnlyaGT's Avatar
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    They are stock 7/8..
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  15. #15 Re: 3.29s from a GT trans 
    Donating Users 16MustangVet's Avatar
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    says who TEP lists them as upgrades for the 4t65......
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  16. #16 Re: 3.29s from a GT trans 
    I Write E85 Stickies Frosty's Avatar
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    Lol. I wish they came with a 7/8ths chain stock. The only upgraded chainset that came in ANY 4t65e is the hardened chain from a gxp. Pretty much is the only oem chain you can buy nowadays.
    "Lets just throw more boost at it and see what happens" -Frosty
    The Defacto Guide to tuning your car for E85. Read it and learn.



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  17. #17 Re: 3.29s from a GT trans 
    SE Level Member OnlyaGT's Avatar
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    Gt trans is 7/8
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  18. #18 Re: 3.29s from a GT trans 
    Donating Users 16MustangVet's Avatar
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    ALL stock ones are dual chain setup not 7/8s lol cmon man. you need to take a look around on the

    www.tripleedgeperformance.com
    http://shop.tripleedgeperformance.co...4T65E-SNGL.htm

    www.zzperfomance.com
    http://shop.zzperformance.com/store/...rsion-Kit.aspx

    www.intense-racing.com
    http://intense-racing.com/Merchant2/...ry_Code=3800_T

    from the intense website....

    INTENSE™ Gear Ratio Conversion Kits use 3/4" spur gear sprockets, instead of the stock 180 degree offset double chain and gears. Each Gear Ratio Conversion Kit includes the appropriate drive sprocket, drive sprocket thrust washer, driven sprocket, 7/8" drive chain, and all the machining required to make these gears fit your otherwise stock 4T65E or 4T65E-HD transaxle. Optionally, you can add the accessory kit which includes channel plate gaskets, valve body spacer/gasket and fluid scoop.

    For the 1997 model year, GM switched to an offset double drive chain design in an effort to reduce noise. The offset double drive chain has two sets of links out of phase by a half link (or 180 degrees). As one link starts to engage a sprocket tooth, another link starts to disengage. The engage and disengage noises are acoustically opposite, so they virtually cancel each other out. INTENSE™ Transaxles use 3/4" spur gear sprockets with a 7/8" chain (same as in this gear ratio conversion kit), instead of the stock 180 degree offset double chain and gears. Because of this, our transaxles have a barely perceptible whine in First and Reverse, but a major weak link is eliminated. Our gear conversion kits come with a new ISS reluctor wheel already attached to the drive gear by loc-tite'd screws replacing the stock rivets that could break or enlongate the ISS reluctor wheel holes.

    NONE are 7/8s stock.
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  19. #19 Re: 3.29s from a GT trans 
    Killa Bee Scottydoggs's Avatar
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    go home tim, your drunk.



    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  20. #20 Re: 3.29s from a GT trans 
    Master-Breaker CapnBreakAlot's Avatar
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    No, they didn't come stock with a 7/8ths chain... they were all a dual chain setup.. and if that's a 97 GT trans is a 4t60 and you might as well just scrap it.
    2001 Buick Regal GSE - S1X - Blue 90# springs - TOG's - Devils Own Water/Methanol kit - 80s - E85 - ZZP 3" dual catback - 2.7 - 23* - N* TB - LQ4 MAF - Gen V - TEP Stage 3 Trans - 3.29s - Self tuned with HPT - 347/423 --- Sold
    ​2013 5.slow F150 - MAK catless Y pipe - Roush catback - self tuned with HPT
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