If you're concerned with strength, I would buy a short section of steel tubing that the cable could go through, drill the cross member and weld that tubing in to regain the strength. That cross member is a significant structural member on a TJ/LJ frame, but reinforcing the hole with tubing should keep it strong. Also, you won't be able to run a Currie sway bar if you do this as their sway bar goes through that cross member.
Lives in garage:
2004 Red Jeep TJ "X", big tires, suspension, stereo delete, dent in cowl.
1982 Red Jeep Scrambler, small block chevy on 35's.
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." -Benjamin Franklin