Thread: Should I install a Transgo Shift Kit 4T65-E?

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  1. #1 Should I install a Transgo Shift Kit 4T65-E? 
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    I'm trying to decide if I should install a transgo shift kit into my 2007 Grand Prix base with 160,000kms as a preventative maintenance. I am not currently having any issues with the transmission but would like to drop the pan and change the fluid/filter in the spring and was wondering if I should bother going a bit deeper to install the accumulator springs/shims.

    I read nothing but good things online about these kits but this is usually about fixing existing shifting problems and not preventative maintenance. And when I talk to people in person I usually hear its not worth installing unless I start getting hard shifts because it will make the shifting a lot more unpleasant.

    So I'm curious what some of the experts here think.
    -how will the shifting feel compared to a normally operating 4T65-E?
    -are there any draw backs from installing these parts?
    -is this effective at extending the life of the transmission or just hiding problems?

    Any advise would be greatly appreciated.
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  2. #2 Re: Should I install a Transgo Shift Kit 4T65-E? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Yes, buy one.

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  3. #3 Re: Should I install a Transgo Shift Kit 4T65-E? 
    GXP Level Member GTPpower's Avatar
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    No need to install unless you have the hard shifts problem.

    It does help prevent a little clutch wear, but is harder on the hard parts like the input shaft, drive chain, etc.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  4. #4 Re: Should I install a Transgo Shift Kit 4T65-E? 
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    I put one in all 3 of mine with no codes. Guess you could call that preventative maintenance. They all shift better. I would do it.


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  5. #5 Re: Should I install a Transgo Shift Kit 4T65-E? 
    I can't car too good. SaukRapids's Avatar
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    It makes sense to do if you're changing the fluid anyway. It's very easy. You may want to apply the fix to hold the lines into the accumulator. It's a sonnax part - http://www.sonnax.com/parts/2534-dif...e-retainer-kit

    If you're having laggy 2-1 downshifts that sometimes bangs back into gear, this may not help. I read that the 1-2 solenoid needs the trans side cover removed. Fluid gets in there, causing it to fail. My trans still has this issue even with the kit installed.
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  6. #6 Re: Should I install a Transgo Shift Kit 4T65-E? 
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    I also added the second magnet to all 3 pans and plan to change fluid every 30k. All things these tranny's like


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  7. #7 Re: Should I install a Transgo Shift Kit 4T65-E? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Being that it's a base model and doesn't have the power/torque a supercharged car does and that fact that it's not modded shouldn't really put any extra stress on the hard parts that would lead to a failure.

    I'd do it now just so it's something I wouldn't have to think about again.

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  8. #8 Re: Should I install a Transgo Shift Kit 4T65-E? 
    GXP Level Member GTPpower's Avatar
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    It doesn't take much power to snap an input shaft. Shocking them is what snaps it.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  9. #9 Re: Should I install a Transgo Shift Kit 4T65-E? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    I'll take my chances, installed several over the past years with never having a problem. Half of them have been in for over 3-4 years already. Never seen or heard of a failure just from installing one. Even TEP has no clause saying don't install if you don't have problems because something might happen.

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  10. #10 Re: Should I install a Transgo Shift Kit 4T65-E? 
    GXP Level Member GTPpower's Avatar
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    I do agree that chances are, nothing will happen until you get to the 13 second power level. But if everything is working fine with these cars, I usually leave them alone.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  11. #11 Re: Should I install a Transgo Shift Kit 4T65-E? 
    Donating Users Bronco Boy's Avatar
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    Quote Originally Posted by TheRiGuy View Post
    I'm trying to decide if I should install a transgo shift kit into my 2007 Grand Prix base with 160,000kms as a preventative maintenance.
    Yes.



    -how will the shifting feel compared to a normally operating 4T65-E?
    You won't notice a difference.



    -are there any draw backs from installing these parts?
    No, other than the cost of the part and your time.



    -is this effective at extending the life of the transmission or just hiding problems?
    Depends on who you talk to. With no other problems, you are just helping the tranny shift quicker. I have a wine and what I believe to be a bad PCS. The shift kit keeps the CEL off, but I consider it a band-aid solution as the wine is still there. I installed my shift kit 6.5 years ago; never a CEL, but the wine is still there. I call this "repair" a very sticky band-aid. LOL
    Chris B
    2009 CX-9
    ** SOLD ** 2002 GT
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  12. #12 Re: Should I install a Transgo Shift Kit 4T65-E? 
    Killa Bee Scottydoggs's Avatar
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    the local shop that rebuilt my friends trucks tranny installs a shift kit no matter what. i asked about it, he stated its part of his rebuilds.

    i got one in my cars tranny. make the shifts a bit snappier.

    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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  13. #13 Re: Should I install a Transgo Shift Kit 4T65-E? 
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    I have the same car and put the same shift kit in mine. I like it just way I see it as preventive maintenance. I did mine about 3 years ago also installed the sonax part mentioned above. Also have two magnets in pan. All is really easy to install. I also do fluid and filter changes every 30 thousand.
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  14. #14 Re: Should I install a Transgo Shift Kit 4T65-E? 
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    alright sounds like I'm putting in a shift kit, differential lube tube retainer and a second magnet. thanks everyone. Is there a recommended location in the pan to place the second magnet?
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  15. #15 Re: Should I install a Transgo Shift Kit 4T65-E? 
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    Sticks it on the filter according to the TSB.


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  16. #16 Re: Should I install a Transgo Shift Kit 4T65-E? 
    Donating Users Bronco Boy's Avatar
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    Quote Originally Posted by TheRiGuy View Post
    Is there a recommended location in the pan to place the second magnet?
    http://www.grandprixforums.net/threa...D-Transmission
    Chris B
    2009 CX-9
    ** SOLD ** 2002 GT
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