Just my 2 cents for what it's worth. Don't over think it. Pull them apart, clean all parts completely, scoop grease out with your hand from the tub and coat the sides of the cups, pack a little at the bottom of the cups, coat the balls, cages and the centers. Re-assemble and pack a little more grease on top of the assembled joint. Super simple, been doing this on my circuit race cars for 25 years. I just rebuilt 2 sets for mine for the brz this past weekend, same technique, using cv2 grease and red wd40 straws from amazon under the outer boot clamp's for venting.
If the balls fell out of the inner joint it was because it was assembled incorrectly, overextended to the point it bypassed the wire clip/retainer at the end of the cup or you broke/cracked the cage in the joint - done that too, usually only in high hp cars. Just my opinion's here, not poking fingers.
When disassembling the inners make sure to not damage the wire retainer at the front of the cup and make sure to not damage the c-clip on the end when you take it out and remove the center piece that's splined. When re-assembling, make sure all the balls stay in place in the cage when sliding into the cup, usually grease will hold them place. Then make sure everything rotates freely before sealing up the boots.
Little things to pay attention to - the ball cages are directional and the forged center piece that is splined and slides over the bar, those are directional as well.
The outers come apart like any Rzeppa joint does. I clamp the shaft in the vice, use flat faced bar or punch, hit the center closest to bar to pop it over the wire clip on the end, it's the same style clip that helps retain the cv axle in the differential. It takes a few good hard whacks with a 5lb sledge.
Other little side notes. Make sure the new cv boot clamps you install don't have anything sticking up that can chafe the boots and cause a tear after tightening them down - if the folds in the boot can touch a sharp edge or raised edge, fix it. I also have never had a cv fail from over being over packed, not really sure that's possible but might be wrong?
Hoping this my help a few people
