Strong light driveshaft ???!!!

[CLB BLZR]

I replaced my upper and lower balljoints pitman arm idler arm outer tie rods and endlinks and rebalanced and rotated My tires this weekend trying to get rid of this damn rumble at 60mph I've come to find out my driveshaft is slightly bent some how... What I'm looking for is a light strong driveshaft websites anything I'd pull a junk yard one but I like new parts over used possibly abused parts thanks

 

[Greg]

possibly found one on rockauto.com use the catalog
>chevrolet
>1996
>tahoe
>drivetrain
>driveshaft