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2002 Silverado Transmission Swap

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Hey i'm looking for some help on doing a transmission swap in a 2002 Chevy Silverado


Here are the specs of my truck:

-2002 Silverado automatic transmission


-v6 4.3 engine



Could someone please let me know if I need to find a transmission with the exact year of (2002). Or will other years interchange with no modifications needed. I want to be able to simply swap them.

I am getting mixed feed back from the salvage yards around my area. Most of the are saying I have to get a 2002 transmission and others are saying other years will work just fine. Apparently GM changed the part number each year so it adds the confusion perhaps.

There is one salvage yard in my area that has a transmission from a 2004 and they are telling me it will work just fine. They said if anything the fly wheel might not work and they said they will provide the fly wheel with the transmission incase it doesn't fit the flywheel thats currently on my 2002 truck.


Thanks for any help someone can provide!

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No expert, except at googling things, but it looks like gm specific tran model 24225957 was only for one year. The transmission is based on their std 4L60E transmission, so it might just need a different bell housing and torque converter set-up.


With that said, http://gmautomatictransmissions.com/transmission_applications.php suggests you could go all the way back to 95.


In any case, gm made some modifications over the years to some of the internals , especially around the valve body. You might want to consider doing these on the replacement tranny before installing. Not a rebuild, but would extend the life of what you put in.


Sent from my XT1053 using Tapatalk

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Any 4l60e transmission from 99 through 2007 classic Will work .


It must be of the 99 nbs GMT800 truck or SUV.


All you'll have to do is change the neutral safety switch if the one you get is different.


Besides the switch everything will plug and play and bolts up as it should.

Edited by SpartanAutoworx
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