yeah it should be fine. basically you have 3 pins sticking out from the end if the shaft. and 3 big wheels that sit on those pins. Those wheels rotate on roller bearings which are cylindrical. Basically clean it all up so its spot less.
Then fill a wheel with rollers and then shove some fresh grease in there and put it on the pin, do the same for the other two.
the fill the drive cup with the rest of the grease, and then sit cup on top of the rebuilt shaft assembly then using some cable ties fasten the boot back up and refit to the car.