If the crack is big enough for oil to leak out, then the brake fluid will go through it, and warm JB weld will suck in a little way. MOST important, the oil won't come back out before the JB is in place.
I can't say how the factory drilled the original grease hole. To go at an angle you just need to get it started then it's easy. Use a cape chisel to raise a bur to give you some "footing" to get the drill bit started at an angle.
I can't say how the factory drilled the original grease hole. To go at an angle you just need to get it started then it's easy. Use a cape chisel to raise a bur to give you some "footing" to get the drill bit started at an angle.