Driveshafts on a 84 CJ- hollow or solid?

[DuffTrucks]

I'm putting a 360 Mopar with a np435 in my 84CJ. Both front and rear driveshafts need to be altered- back needs to be longer and the front shorter. Are the driveshafts solid or hollow?

 

[Bounty__Hunter]

Likely hollow, solid shafts would be too difficult to balance.

 

[DuffTrucks]

Thanks.