[addicted2dunes]

I take that back... 8.8 has a bolt on rear cover. That is a Ford 9" but it's not out of an Explorer. It looks like it is out of the mid class cars from the 60's-70's. It is a small bearing housing, I can see the stepped tubes and the butt spliced tubing to center section.

Higher horsepower axles have the one size axle tubes, big bearing, and the center section is V-notched over the axle tubes.