Can anyone help me out with finding a good stock driveshaft?

I have been having all of these problems with my transmission and go figure my built driveshaft is about 2 inches to short... i feel like a dumb *** i didn't think about this 2 years earlier when i put it in.

I just want to put a decent stock one in there for now... i don't plan on trapping 120 in the 1/4 so i should be ok . Ill get another built steel one later.





But on a side note 4L80E's need shorter driveshafts right? How much shorter do they need to be? Maybe i can sell this one... its a damn good driveshaft... just to short me my truck