i busted a brandy new CV shaft the other day, and arranged to have it replaced for free. my question is will it be ok to run the truck for a few days without a CV in it, or am i going to destroy my bearings?

you will be fine max, no problem at all running without cv shaft. just put something like a rag or tape to cover the open hole in the rear of the knuckle so dirt and debris do not enter.

yeah you will be fine, as long as you dont engage 4wd(obviously)

I drove around a few days until I could get mine fixed. You will be fine.