trans swap

[stinger1]

I currently have a 4L60 With rear end gearing 3.23. I would like to remove this transmission and installe a T56. I have a few Questions.
1) what kind of problems will I have doing this?
2) The transmission control computer where do I find it to remove?
3) Information for Bell housings and flywheels?
4) What kind of modifications will I need to make to the chassis?

[gettinthere]

I just did this swap going both ways back in February.

1. No problems provided you do it correctly
2. The trans is controlled by your PCM.
3. What kind of info?
4. None. You'll need a T56 crossmember and torque arm bracket though.

[stinger1]

Are the flywheels the same for the 4l60 as they are for the t56? Will the t56 bolt right up to the Engine with the existing bell housing?