Yes the cv joint grease is a good choice. Swinging down the final drive to drain it is the best choice when there is no drain plug. Pesky to put back together. Have some blocks ready to support the drive when you undo the torque arm. 180ml of GL5 rated gear lube. You can also remove the leading edge of the front boot and scoot the shaft back 3/4" and lube those splines if you have some time on your hands. Watch out for the abs wire.
Mount Vernon, WA.
tire guy, I'll mount your tires.