Here is one option without replacing the entire shaft:
www.jxbperformance.com

Driveshaft Carrier Upgrade - LD Facelift Dodge Charger/Challenger/Chrysler 300 — JXB Performance
Replace your worn or torn center support bearing carrier without removing it from the driveshaft or removing the driveshaft from the car. Performance driveshaft (propshaft) carrier upgrade keeps your driveshaft perfectly aligned, reduces drivetrain slop, and doesn't sag or wear out over time. 2-pi