This is an Explorer rear end. The tubes do not appear to be welded anywhere, except for these 3 buttons(per tube). The pinion is offset 4" to the right. The left axle is 3" longer than the right axle. If I cut the left tube and use another right axle, the pinion will be closer to center and my 275-50-15 DRs will tuck in on my '68.
The Expy unit came with 31 spline t-loc, 3.73 gears, and disc brakes. I was going to use all the Expy internals in a Fox rear. It will be much cheaper to cut the Expy rear than to buy 31 spline axles for the Fox rear.