Never posted the carnage or what I ended up doing. It did indeed break the input like I had previously stated. A small sliver of the shaft took out the pump as well. Put in billet input and output and Mike rebuilt the trans due to the pump.
Also had Mike's one off secret squirrel torque converter installed. Man does it rip. Just this converter change netted me a solid tenth off my 60ft time with zero other changes. It couple's so amazing and the response is unlike anything I've felt before.
Can't say anything else as im still dealing with fuelling issues but it's improved my launch and 60ft for sure