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post #1 of 4 Old 09-12-2013, 04:48 AM Thread Starter
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Valve Body

What will this do for my truck? I am not sure I understand what it does better than my stock valve body and the benefits of it doing what it does better than my stock?

Thank in advance....

2002 F250 CC SB 4x4 7.3L
165K Miles
CCV Mod
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PHP Hydra
RiffRaff FRx
AFE Stage 2
Wicked Wheel 2
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Dieselsite Legendary Transmission

2 Corinthians 5:15 - "and He died for all, so that they who live might no longer live for themselves, but for Him who died and rose again on their behalf"
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post #2 of 4 Old 09-12-2013, 05:19 AM
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Here's the deal.... The makers of Auto Transmissions (and for some reason even in our application) design them so that the shifts are smooth and as "imperceptible" as possible. To do this they actually have, during the shift, both gears (clutch packs) engaged at the same time. Handing the change in ratio over with as little disturbance as they can.

What this is doing though, is creating a Bunch of friction and friction = heat & wear. So, the modified VB is designed to eliminate some of that, the transition is firmer with less "mush". It's a subtle difference though, not as dramatic as you might think. You won't notice a Nigh & Day difference, not gonna chirp shifts or anything. Just know it's Much better for the life of the transmission.

At 150K though, I donno if it's gonna do much for yours. At this point you've got most of that wear already...
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post #3 of 4 Old 09-12-2013, 06:41 AM Thread Starter
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Very nice explanation, and you answered what was going to be my next question. Thanks for the quick reply....

2002 F250 CC SB 4x4 7.3L
165K Miles
CCV Mod
Fluidampr
PHP Hydra
RiffRaff FRx
AFE Stage 2
Wicked Wheel 2
Adrenaline HPOP
Evans NPG Coolant
Aeroforce Interceptor
Mishimoto Intercooler
6.0 Transmission Cooler
Red Head Steering Gear
4" Turbo Back Magnaflow
International Bellowed Up-Pipes
Dieselsite Legendary Transmission

2 Corinthians 5:15 - "and He died for all, so that they who live might no longer live for themselves, but for Him who died and rose again on their behalf"
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post #4 of 4 Old 09-12-2013, 10:42 AM
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As already mentioned the stock shift is very loooooooooooooong and drawn out. This gives a car like feel, but who wants that in a truck? The longer the clutch packs are engaged the more friction is building and friction means heat and it also means increased wear and shorter component life, pretty simple really. The tuned valvebody will shorten the shifts up, and make the shift good and solid, this may not drop your trans temps a noticeable amount, but it will extend the life of the clutches. As for which one, flip a coin, when I bought mine Greg at FTVB was the only one doing them (2003) but to be honest, FTVB, BTS, John Woods, there is only so much you can do to a valvebody, take your pick.

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