Why do i keep breaking/stripping out input shafts on my 4l60e

[Dangerous95lt1]

This is my second input shaft i have messed up. My first broke completely in half. My car doesnt make alot of power my mods r n my signature i just dont understand. Any input guys? Thanks

[joelster]

Junk converter? If it swells from the nitrous it can do damage to the input shaft.

[Chris]

Need a convertor with a anti ballon plate

[96LT1355Z28]

What suspension mods do you have. Improper drive line angle can break pats for no apparent reason. Usually the output shaft of the trans.

[Dangerous95lt1]

Just stock torque arm with factory replacement shocks

[96LT1355Z28]

the only thing I could think of ids the stock parts are wrapping up and putting stress on the output shaft, but you'd have some bad vibrations. I just noticed you originally said input shaft, I was thinking output shaft so my suspension theorys are out the window. I'd look into what Joelster and Chris said.