Something Broke ( gonna make more powerful 220hp coming up)

Bent shafts don't sound good. It makes me wonder why there aren't many Rocket 3 drag bikes.
I don't think shaft drives work very good for a full on drag bike. The only option would be turning the engine. Might as well just start with something that already has a transverse engine.
 
Well, more than torsional damper, something on output or input shaft is broke also, so, yup you guessed it, gonna drop it and split it to get to trans i gotta get more oil

a little story i tell to my racers you can take an egg and squeeze it as hard as you want and it won't break but if you slam it against the wall it is going to break.
do not do neutral drops.
on your bike i would guess just a second more while releasing the clutch might save the hard parts and the clutches are cheeper and easier to replace.
jmo
 
If youre gonna talk the talk you have to walk the walk, so yeah if my bullet proof spirilocs came loose ill let you know.
Don't throw the baby out with the bath water, you won't know anything until disassembled and thoroughly inspected, and sometimes you still have to speculate the cause. Searching for next weakest link. What you have found already may have been the cause and breakage the result, speculation is just that. Hate that for you.