Please help replaced driveshaft with aluminum D/S and now makes noise.

Hey guys I just installed a aluminum D/S from a LS1 car and now it makes noise or whines as 55mph and up. What gives. I had no noise before and have not changed the gears. 97 Z28 6 speed.

did you recheck everything?

bearings on the Ujoints and the bolts all the way they should be?

What kind of noise? Was it a new DS?

Yes I rechecked everything installed the way it should be. It was a used D/S 45K miles, it is a vooovooovooo noise. It's drive shaft.