So I have a chirping/grinding driveshaft, that "all of a sudden" after a rear end collision while parked against a curb with the hubs locked, after $15000 of front end work, the hubs and bearings had to be replaced along with some body work. The brunt of the collision hit the tow hitch.

Anyway, all that was fixed but the dudes at the shop say that my driveshaft is rusted and from normal wear and tear it broke at the same time the accident occured, AND the insurance wont cover the repair of the driveshaft. ( I hardly use my trans in 4x4, although I always keep my hubs locked, which I found out turns the driveshaft) ANYWAY,

I would like to do this job, and I'm wondering it is OK to remove the driveshaft and have it out while I drive around town getting parts, and using my truck for work? I know I have to line everything up perfectly before re-installation. But would there be any other downsides?