Drive line from long bed to short bed

[Big70]

OK so I’m going to be cutting my long wheel base to a short wheel base and I have a two piece drive line. So my question is Do I go to a single piece driveline when I shorten it and if I do what do I do about the driveline cross member? I Will be using the brothers shortening kit. I was thinking that I’m going to need to go to a single piece based on I’m running a 468 was probably about 500 horse and thought it might be a better idea just going to a single piece driveline any help and or tips much appreciated thank you