Had EF1 motorsports remove the driveshaft. I sent it off for a rebuild and it's back in the car with a freshly painted (aluminum color paint) exhaust heat shield and all new hardware. Driveshaft is back in the car and it's smooth as butter again.
Lesson learned - I should've sent the driveshaft off for a rebuild the first go around, rather than installing a CV joint and carrier bearing myself.