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#4713692 - 04/01/18 11:04 PM recommendation ATF for worn out clutch pack
tookien Offline


Registered: 06/07/16
Posts: 60
Loc: Toronto
Hello,

I have 4l60e transmission that leaked out all trans fluid (rusted cooler lines) and likely has worn out clutch pack and seal.
But it still runs but there is a delayed engagement @ 3-4 and just a little jerky on the 1-2 (depending on timing and acceleration), kind of annoying more than anything else.

I want to do another ATF full flush and filter change, but want to experiment a bit to get (possibly) a little smoother shifting. I already changed the solenoids on it.

Do you recommend Dexron 6 blend or full synthetic in this case? And perhaps lubeguard additive on top?

Thanks


Edited by tookien (04/01/18 11:09 PM)

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#4713697 - 04/01/18 11:09 PM Re: recommendation ATF for worn out clutch pack [Re: tookien]
demarpaint Offline


Registered: 07/03/05
Posts: 30026
Loc: NY
You could try the spec ATF and a bottle of LG red. It might help a bit, although if the parts are actually worn out I think you'll eventually be looking at a rebuild.
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#4713700 - 04/01/18 11:11 PM Re: recommendation ATF for worn out clutch pack [Re: demarpaint]
tookien Offline


Registered: 06/07/16
Posts: 60
Loc: Toronto
what's spec ATF? is that just the regular Dexron 6 blend or full synthetic?

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#4713702 - 04/01/18 11:12 PM Re: recommendation ATF for worn out clutch pack [Re: demarpaint]
tookien Offline


Registered: 06/07/16
Posts: 60
Loc: Toronto
LG has the 32oz, the 10oz and 2oz bottles.

the more the better?

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#4713706 - 04/01/18 11:22 PM Re: recommendation ATF for worn out clutch pack [Re: tookien]
maxdustington Offline


Registered: 01/21/17
Posts: 896
Loc: Toronna
Maxlife and LG red, the BITOG transmission elixir.

I assume he meant whatever atf is specified for your vehicle. Depending on age dexron 3?

I know how those shifts you describe feel, especially that 1-2.
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#4713707 - 04/01/18 11:22 PM Re: recommendation ATF for worn out clutch pack [Re: demarpaint]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
Originally Posted By: demarpaint
if the parts are actually worn out I think you'll eventually be looking at a rebuild.


NO ATF fluid in the world (NONE) will fix a worn clutch pack.
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#4713716 - 04/01/18 11:35 PM Re: recommendation ATF for worn out clutch pack [Re: maxdustington]
tookien Offline


Registered: 06/07/16
Posts: 60
Loc: Toronto
thanks, and it's a 2007.

I'm not sure if it's a myth or just plain misinformation, but I have read that fully synthetic ATF can be "too slippery" for the clutches.

Is that true? would it therefore be beneficial not to use fully synthetic if the clutch pack is (slightly) worn and therefore more friction the better?

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#4713738 - 04/02/18 01:01 AM Re: recommendation ATF for worn out clutch pack [Re: tookien]
mcrn Offline


Registered: 11/30/05
Posts: 3210
Loc: FL
Originally Posted By: tookien
thanks, and it's a 2007.

I'm not sure if it's a myth or just plain misinformation, but I have read that fully synthetic ATF can be "too slippery" for the clutches.

Is that true? would it therefore be beneficial not to use fully synthetic if the clutch pack is (slightly) worn and therefore more friction the better?



That is not true.....the add pack will determine how "slippery" the fluid is.
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#4713765 - 04/02/18 04:07 AM Re: recommendation ATF for worn out clutch pack [Re: tookien]
Falcon_LS Offline


Registered: 10/03/08
Posts: 4073
Loc: Kuwait
You're probably fighting a losing battle here, but I would skip the Dexron-VI and go with a thicker fluid, like TES-295 and add 16 oz. of LubeGard Red with it. The esters in LubeGard might help some, but it's no guarantee.
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#4713766 - 04/02/18 04:37 AM Re: recommendation ATF for worn out clutch pack [Re: tookien]
demarpaint Offline


Registered: 07/03/05
Posts: 30026
Loc: NY
Originally Posted By: tookien
LG has the 32oz, the 10oz and 2oz bottles.

the more the better?

The 10oz bottle is good for most automatic transmissions. You can shoot them an email and they'll give you a dose/per quart of ATF, then base it on the transmission's capacity.
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#4713796 - 04/02/18 05:51 AM Re: recommendation ATF for worn out clutch pack [Re: tookien]
Trav Offline


Registered: 11/20/06
Posts: 19346
Loc: MA, Mittelfranken.de
If the clutches are worn out or missing friction material its a done deal. You cant fix broke.
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#4713878 - 04/02/18 08:15 AM Re: recommendation ATF for worn out clutch pack [Re: tookien]
vwmaniaman Offline


Registered: 04/18/13
Posts: 146
Loc: Kevil,Ky
I have read that the old Ford style fluid is thicker and can help with low pressures and slow shifts.
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#4713882 - 04/02/18 08:19 AM Re: recommendation ATF for worn out clutch pack [Re: vwmaniaman]
demarpaint Offline


Registered: 07/03/05
Posts: 30026
Loc: NY
Originally Posted By: vwmaniaman
I have read that the old Ford style fluid is thicker and can help with low pressures and slow shifts.


Yes but it won't replace worn out material or a unit in need of a rebuild as I alluded to earlier.
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#4713984 - 04/02/18 10:06 AM Re: recommendation ATF for worn out clutch pack [Re: tookien]
Mc357 Offline


Registered: 06/29/17
Posts: 30
Loc: CT USA
Is the 1-2 hard shift a bad sign? I have a 2000 Silverado same transmission, with the same feel 180k Miles, and a rebuilt transmission about 60k ago.


Edited by Mc357 (04/02/18 10:06 AM)

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#4714064 - 04/02/18 11:42 AM Re: recommendation ATF for worn out clutch pack [Re: tookien]
chrly919 Offline


Registered: 01/11/13
Posts: 72
Loc: Tennessee
Maxlife ATF and Lubeguard Red. What have you got to lose? Won't fix it but it will make it more comfortable until it expires grin


Edited by chrly919 (04/02/18 11:45 AM)
Edit Reason: Mistake
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