…OK, not gonna lie, cleaning that case lip was a pain in the ass.
But I wanted that surface to be absolutely clean; spend the time and effort now so it’s one and done. Spent a fair bit of time degreasing and cleaning all the holes for the mounting hardware too, and used Locktite Red since I shouldn’t ever have to remove these fasteners now that I have a cover with fill and drain ports.
If I do need to remove ‘em, a little heat will take care of it pretty easily.
At any rate, once I got it all buttoned up, I put in 3 qts of 75-90 gear lube, then pulled it onto level ground for the last little bit.
I honestly expected it to be full, and start dribbling out when I pulled the lower fill plug, but mine took a couple ounces from a 4th quart before it overflowed the fill port.
Double checked for leaks or any obvious missed bolts, etc. and took it for a couple of miles test drive, going up and down the steepest hill in our neighborhood in the process.
All good!
Only thing I’m not happy with is that little bracket above the diff that holds the brake lines. It’s bolted down securely on the top, but there’s a tab that hangs over the front of the diff that used to go over a small stud on the cover.
However, the new ARP fasteners obviously don’t allow that, so I’ll go back in there and use a cutoff wheel on a Dremel to remove that little lip/tab that hangs over the front of the diff cover.