4t40E casting numbers - Transmission Forum

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4t40E casting numbers
Thursday, June 21, 2018 7:32 PM
Hi all, looking for information on the case casting numbers on the 4t40E.
Example= B23, B4, B7. What do they mean?
Also looking for a data breakdown of metal tag codes.

Re: 4t40E casting numbers
Friday, June 22, 2018 1:01 PM
It maybe in the 4T40E performance rebuild trend on the trans forum.




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