Best way to firm up shifts? - Ford Powerstroke Diesel Forum
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Old 09-03-2010, 06:47 PM
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Best way to firm up shifts?

I'm sure this topic is a dead horse so I apoligize in advance. I have an early 99 truck, and i want to firm up the trans shifts and maintain the reliability. first off, I am not sure if my truck has the E40D or the 4R100. I put an aftermarket valvebody in my 2001 lightning (which has the 4R100) and it made a night and day difference and it is supposed to make the trans run cooler because the shifts are quicker.

On my PSD I am running the edge chip and it does have the ability to raise the line pressure for shifts but i have heard it can hurt the tranny having raised pressure all the time so I have been leaving that stock.

I do some towing, mostly a ski boat and on rare occasion a dump trailer or mini trac-ho around 11,000lbs.

I miss the solid shifts my lightning had with the valvebody, so what's the best option for my f-250?
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Old 09-03-2010, 06:58 PM
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Valve body
And a chip tuned custom to the valve body.
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Old 09-03-2010, 07:00 PM
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There are some great aftermarket valve bodies on the market for these trucks. But if you don't want to spend alot of money, you can get a shift kit for pretty cheap.
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Old 09-04-2010, 02:30 PM
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I know there are valve bodies available like the BTS and the woods, but are they actually safe for serious towing? or would something like the banks power trans command be a better option for performance/reliability.
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Old 09-04-2010, 03:59 PM
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For serious towing? Oh definitely. Those guys build transmissions for the BIGGEST racers and sled pullers. And their VBs are just as high quality.
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Old 09-04-2010, 06:15 PM
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Anyone have a link to a tried and true tested valve body, I think I need one to
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Old 09-04-2010, 06:28 PM
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Quote:
Originally Posted by Hemicross View Post
Anyone have a link to a tried and true tested valve body, I think I need one to
Like a review of someone actually using one?
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Old 09-04-2010, 06:42 PM
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Oh, if you have one but mainly a highly recommended by our forum users that actually put it to the test, more of a product link to a website I can order from
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Old 09-04-2010, 06:51 PM
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john woods valve body - Google Search
BTS Valve Body
I forgot a Factory Tech VB.
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Old 09-04-2010, 08:47 PM
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I had the greg evans factory tech valve body on my lightning, but I assumed it was designed with the lightning in mind, not just the 4r100 in general. The ftvb comes in two versions, street and strip. i went with the street version, nice smooth shifts when cruising but WOT it would give you whiplash...I can only imagine what the strip version would be like
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