snap ring pliers?

[WAUFX at aol.com]

Hey all-

I need some snap ring pliers to do the shifter bushing on my 90q. I went to
Home Depot, looking for Channelock tool #904 and my local one did not have
it. Searching on Harbor Freight, I find snap ring pliers of the "external"
and "internal" variety.

I feel like a fool for asking, but what's the difference? The rings the
pliers will be used on are the ring that goes around the shifter stick and
the ring that hold my new door lock cylinder in place...advice?

Thanks.

Megan