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4r70e

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  #1  
Old 09-11-2017, 07:09 PM
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4r70e

Why cant i find much on this transmission?
I need to replace my 2005 4r70e, but dont know what is compatible with mine.
 

Last edited by leeannamumphrey; 09-11-2017 at 07:21 PM.
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Old 09-12-2017, 07:54 AM
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Which engine?

D
 
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Old 09-12-2017, 06:02 PM
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4.6l it's in an '05 f150 xl supercab.
 
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Old 09-12-2017, 06:54 PM
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While you can use an 04, I would choose a transmission from pretty much any V8 equipped F150 from 05 through 08. There are other possibilities, many really, but that should put you on the right track. Has to be a V8 though, even from a 5.4l

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Old 09-12-2017, 07:24 PM
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Isn't there a difference between the 70 and more common 75 due to output shaft's ring gear being different? If all I can find as a replacement is a 75, would I need to tune for the difference, as you've stated in previous posts?
 
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Old 09-12-2017, 09:12 PM
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Originally Posted by leeannamumphrey View Post
Isn't there a difference between the 70 and more common 75 due to output shaft's ring gear being different? If all I can find as a replacement is a 75, would I need to tune for the difference, as you've stated in previous posts?
Starting in 03 they all have the same count for the ring gear. Only the transmissions from prior to 04 would be an issue for that in your truck.

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Old 09-16-2017, 05:33 PM
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Darrin, thanks for the info. my transmission man has installed a 4r75e in place of the 4r70e. just got it back today. seems to be shifting rather hard and lagging from a dead stop. is it possible that a tune is in order to sync computer and trans? i am about to disconnect ground on battery in an attempt to reset computer.
 
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Old 09-19-2017, 10:05 AM
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Originally Posted by leeannamumphrey View Post
Darrin, thanks for the info. my transmission man has installed a 4r75e in place of the 4r70e. just got it back today. seems to be shifting rather hard and lagging from a dead stop. is it possible that a tune is in order to sync computer and trans? i am about to disconnect ground on battery in an attempt to reset computer.
No tune needed. lagging from a dead stop is indicating something that may be key. What torque converter was used?

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