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4l80 newb

For the most part I think it should. things you need to watch out for is the internal harness may be different along with sensors / solenoids. also depending on what engines are driving it in both yours and on the donor. torque converters could be different.. and no do not plan to re-use your old TC. it's full of clutch material and debris from your old bad trans and will kill the donor.

keep in mind that the bell housings will also be slightly different. iirc 01 used a bolt hole at the top center and the 97 does not. unless I have that backwards. but you are downgrading from the upgrades that GM did between 97 and 01. tail shaft lengths can also be different as well and might not be interchangeable. your best bet is to have YOURS fully rebuilt and upgrades to last. that comes out cheaper and better in the long run. If you can get or make the tools required to compress the springs in the clutch packs, it's not that difficult to rebuild a 4l80. just needs to be done in a clean environment, so just setup shop in your living room while your other half watches you rebuild it and make a mess. that is unless she strangles you first LOL.
 
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