found this thread in a search, will a NNBS (07-08) 4L65E directly swap to an NBS with a 4L60E (2002)?

 

My tansmission in my 2004 silverado is acting up, it goes into nuetral when it tries to shift into 3rd. Does anyone know if I can swap a 2000 4l60 2wd tranny into my 2004 silverado without any modifications.
Thanks

 

3-4 clutches are fucked, and YES you can swap those two transmissions. There are some hard part differences, but nothing that will effect how it drives.

I ended up using a 99 trans as the core for my build and it worked out fine.

 

What about a nbs tranny in a nnbs. Would that work