drain plugs and magnets on drain plug and dipstick
oh and probably cus he has a arb air locker in it.
Yes, I am upgrading to an ARB diff cover because it is a superior unit, but more expensive, and I have an ARB air locker. The ARB one is also a very cool looking unit. The Rockcrusher cover however offers your diff considerably more protection than the stock cover. It just does not have the drain plug, dipstick and magnets. The cover will be available in about 3 weeks. If someone wants it drop some cash off and I will hold it for you. The front one off the D30 has already been spoken for.