trans swap help

[ripp_jr]

yes was wondering if a transmisson out of a 2003 impala will work in my 2001 impala both are 3.4 liters engine

[HeMi101]

Originally Posted by ripp_jr

yes was wondering if a transmisson out of a 2003 impala will work in my 2001 impala both are 3.4 liters engine

They changed some things in 2003/2004. You would need a PCM from a 2003 and the engine wireing harness from a 2003 to use a 03 trans.

[tractorboy]

does the 04 still use the 4T65E

[HeMi101]

2000 - 2010 Impalas ALL use the 4T65E yes. Just over the years they improved/changed some minor stuff.

[MNSubbie]

Hey Ripp....I was wondering if you ever did your swap and if everything turned out OK??

I actually am going to try to just the opposite and put an 01 Tranny into an 03. Trying to find out if there is a way i can make my swap work----maybe its as simple as having the wiring harness and computer to match the transmission?? Any tips or feedback would be appreciated

[wafrederick]

The PCM does not have to be changed and I put in a 2001 in a 2003 without changing the PCM.You have to make sure it is the right one and there are a couple things to look at the wiring plug,the big round plug looking for the color.For example a brown plug will not work with the vehicle coming with a green plug.The gear ratio has to be right or it will not work.The final drive can be swaped out to the replacement real easily.