Dartin for Divorce

That plug hole in the 8.75 housing is for filling it with gear oil. You want to be about .25" - .50" below that hole. I just stick my finger in it and bend the tip down. if I feel oil, it's good to go.

There should also be a tapped hole for a vent on top of the housing towards the driver's side. It's for a vent that keeps pressure from building and blowing your seals. And it holds your brake line distribution block.

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So my housing actually has a vent bolt in it, it looks like the cap is on it still as well. Besides DrDiff is there a way to buy them at a local auto parts store? I also need the 3rd member fill plug and I didn't see that on Dr diffs site. I don't mind purchasing from Dr Diff but if I can get it all in 1 swoop in a day or so I'm always happy with that too.

Is that just a regular 3/4in thread bolt plug for the fill plug?