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Author Topic: Toruble finding a tranny.  (Read 1309 times)


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Toruble finding a tranny.
« on: October 08, 2012, 02:12:47 AM »
I'll have over 500 hp at the rear wheels this is why I'm having a problem finding a tranny.
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J dot Miller

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Re: Toruble finding a tranny.
« Reply #1 on: October 08, 2012, 10:00:05 PM »
A 2003 -2004 4R70W should be a good 500 HP starting point.  I would at least see what can be done to make it take 600 HP.  I use Level 10 now but my guy is local and I know him...  When it comes to this stuff you need someone you can trust.  Many builders, including the internet builders tend to lie at times...

Back in 2007 we learned with mylittleblackbird (4R75W) that the output shafts have no teeth so you will need to swap over yours.  You will need to look at repining the harness or using your old one.

You will need either new or re-use the following from your transmission:
  MLPS/  shift lever
  TCC Solenoid (Torque Converter Solenoid)
      1 to 3 ohms - F2VY-7G136-A (1992-1995)
      10 to 16 ohms - F7AP-7G136-AA (1996-up valve body only)

Expect to spend over $3,000.

Some links:


The 5.4 swap has been called a bad idea, and considered an underpowered considerable waste of time, since 2007.

Nice to see that most donít think that anymore.
Bondfreak13 07/28/09 09:05 PM