00 silverado 4x4 transmission ?’s

I have a 2000 silverado 4x4 ext cab. its the base model with the 4.8 engine and auto trans. The transmission has gone out but i found one for $500 at a junk yard that came off the same truck. The only difference is it came off a 5.3 instead of the 4.8. So my question is whats the difference between these two transmissions and what would it take to make the 5.3 trans work on a 4.8 engine. Thanks for your help. let me know.

Ben Phillips

so does anybody know if the 4.8 and 5.3 use the same transmission? or if they're interchangable? thanks

All you need to do a call a reputable Chevrolet Service Center and ask the parts department or possibly a service technician.  Any Trans Shop should also be able to answer the question as well.

all the 4.8 and 5.3 motors have a 4L60E if its automatic  the 6.0 uses a 4L80E