Re: how to take out c clips on a ten bolt chevy
Remove the pinion shaft lock bolt completely, it will come out. You will have to rotate the carrier a bit to get in a position that will allow removal.
Now you can position the carrier to a point you can slide the pinion shaft out and get at the c clips without rotating the carrier and disturbing the spiders. If you where looking at the pinion shaft from the wheel, this will be about 1:30-7:30 (o'clock) position, not the 12:00-6:00 or north -south position you describe.
It really shouldn't be difficult, but if the spiders move, you can get them back in with a little fanagling.
When reinstalling the pinion shaft, I like to draw a line on the end of it with a Sharpie to show the position of the hole for the lock bolt