Vince,
GLC is synthetic non-moly grease for the wheel bearings.
GHD is synthetic moly grease for the knuckle.
I used the moly in the knuckle bearings, the CV (birfield) and the knuckle cavity; and non-moly in the wheel bearings.
-B-
Wayne,
Be sure to get the Amsoil HD (?) grease for the wheel bearings. It's the red stuff. The moly is the purple stuff. I wouldn't use moly in the wheel bearings but it's not the end of the world if you have to.
-B-