Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
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Old Apr 9, 2006 | 05:00 PM
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Default shift kits?

what does a shift kit REALLY do? i know it makes your car shift quicker and more firm, but is it good for your tranny to shift faster? it doesnt seem like this would increase your et any.. my car shifts plenty fast as it is.
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Old Apr 9, 2006 | 08:24 PM
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It depends. The ones that simply modify your line pressure are a waste of time. The ones that physically change parts inside the transmission to make it function better are a whole different game.

FLT uses a modified Trans-Go HD2 kit and it's awesome.
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Old Apr 9, 2006 | 08:38 PM
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well not to be a jackass but that didnt really answer my question. what parts are changed? what do they do? how does it help your tranny?
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Old Apr 9, 2006 | 09:23 PM
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There are changes done with increased accumulation along with more feed oil to the clutch packs for added holding power. Also if the trans is apart the trans go kit comes with added release springs for the input drum. This insures that the clutches release when their supposed to or release faster. Also these springs aid to keep clutches from coming on prematurely. It corrects lock up issues along with added lube or cooler flow pressure. The kit also comes with shims for adjusting the 2-4 band. IMO it is fixing alot of issues.
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Old Apr 9, 2006 | 10:23 PM
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Wont do too much for a stock converter. With a high stall the shifts become soft..IMO it will extend the life of you clutches. You may see a 10th if your really lucky.It will FEEL faster
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Old Apr 9, 2006 | 11:30 PM
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What all do you have to do to rebuild these 4l60es?? I was thinking of trying it myself....Since these seem to be the first thing to go in these cars
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Old Apr 10, 2006 | 12:02 AM
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wont a shift kit be to much line pressure for a bolt on car how do you fix that
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Old Apr 10, 2006 | 12:04 AM
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A shift kit that changes internals is usually better on a tranny because a stock tranny is set to shift smooth which causes more clutch plate wear, and with a shift kit it shifts quicker so there is less clutch slippage.
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Old Apr 10, 2006 | 07:21 AM
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Originally Posted by steez
wont a shift kit be to much line pressure for a bolt on car how do you fix that
Line pressure is adjustable. And most good builders try to get it between 200-230 psi. At least I know I watch it on the DYNO and adjust per application.
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Old Apr 10, 2006 | 07:50 PM
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so is a tune that makes the car shift faster the same thing as a shift kit? my friend has a hpp3 that makes his car shift a hell of alot faster.
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Old Apr 10, 2006 | 08:08 PM
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Originally Posted by Sunset'01Z
so is a tune that makes the car shift faster the same thing as a shift kit? my friend has a hpp3 that makes his car shift a hell of alot faster.
There are changes done with increased accumulation along with more feed oil to the clutch packs for added holding power. Also if the trans is apart the trans go kit comes with added release springs for the input drum. This insures that the clutches release when their supposed to or release faster. Also these springs aid to keep clutches from coming on prematurely. It corrects lock up issues along with added lube or cooler flow pressure. The kit also comes with shims for adjusting the 2-4 band. IMO it is fixing alot of issues.
Vince makes it clear that the shift kit involves alterations to the valve body and sustitution of hard parts. That is more that what any tuner can do. I have both a shift kit and tuning for faster shifts.
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Old Apr 13, 2006 | 09:51 PM
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How much does a shop charge to install one of these??
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Old Apr 13, 2006 | 10:32 PM
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Originally Posted by SVT THIS
How much does a shop charge to install one of these??
My guy charged $145 with the tranny already out for converter install.
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