[1Gary]

I'm looking for a chart that would give me the outside dimensions of a Tremic 6 speed and a 700R4 for a comparison.

 

[AutoGear]

I don't have a thumbnail sketch of the T56 for envelope dimensions; but be careful specifying "Tremec 6 speed" You now have 2 different variants:
The T56
and
The TR-6060 which comes in a crate as the T56 Magnum (thanks Tremec Marketing for calling a completely different transmission a T56).

Some dimensions on these 2 transmissions will be different, as far as which and where; I have no idea. I would ask the LS1Tech guys if you can't get an answer here as some have retrofitted TR6060's into T56 equipped cars

 

[cucumber1949]

T56:

www.rsgear.com/TCase/TREMEC/T56.pdf

700R4

http://www.transmissioncenter.net/TransmissiomMeasurements.htm