Most grill guards are more cosmetic than anything, and would not support the stresses that a winch would give its mounting points, especially for any side pulls.
Personally I think a good rule of thumb for judging winch mount points is, \"would I hang my rig from a tree by this?\" If you wouldn\'t, it\'s surely not good enough for long term durability, and you really don\'t want it to fail you when you need it most.
