700R4 to 4L60E swap with LM&

[Ole Greenie]

Hi again you all!

I am about to install the "subject" transmission (4L60E) into my truck. It has a 2002 LM7 5.3 with a few goodies so I want to mate it to the electronic tranny.

So, I am replacing the Stage III BTO 700R4 with about 8500 miles on it with the 4L60E. It has the code 2SDD on the tag and is from Mad Dog Transmissions, GA to handle about 500 HP/TQ and under. engine makes about 405 HP and 399 TQ.

My questions are these:

1) Can I replace the 4L60E transmission tail housing with the 700R4 tail housing and install the gears on the 4L60E output shaft to run the speedometer?

2) Which flywheel do I need? I bought the kit to adapt the 700R4 to the LM7 engine. A flywheel I bought to mate to the LM7 (12563136) is too big in diameter for the bellhousing (Thinking it was for the 4L70/80E bell housing). If you have a PN, that would be great.

3) How much will I need to cut off the existing driveshaft? ~1.5"?

4) Can Use the existing neutral safety switch on the column (I believe so)? As it is now, I can not start it in any gear other than P and N with the existing factory wiring and 700R4.

5) Is there a different trans mount needed? The one I have in there is new for the 700R4.

6) Which connectors will I need for the cooling lines? I have steel lines now. would it be easier to go with SS flex or rubber trans cooling lines?

Thanks in advance for y'alls help. This board is great!

John