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LD9 and Eco interchangeable items - Page 2 - Transmission Forum

Discussions about modifications to j-body automobiles which involve all parts of the powertrain that do not include the engine.
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Re: LD9 and Eco interchangeable items
Wednesday, April 11, 2012 7:01 PM

Whats wrong with the 4t40e?

David since you have both 2.2 and 2.4s plus with 4t40es they have different differentials. The ecotec has a 3.29 that will swap out with the 2.4s 3.05 diff for quicker acceleration.
Re: LD9 and Eco interchangeable items
Thursday, April 12, 2012 5:16 AM

98grandamld9 wrote:

Whats wrong with the 4t40e?

David since you have both 2.2 and 2.4s plus with 4t40es they have different differentials. The ecotec has a 3.29 that will swap out with the 2.4s 3.05 diff for quicker acceleration.


I blew my 4t40 on the dyno, no more auto for me.



Down and out again!!

2012 numbers
328 HP
306 TQ


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