I was going back over this thread and stopped at BudWs post on rear axles, the Dana 44 is a fairly strong axle assembly, not as strong as a 8 3/4 but strong enough for a 400 hp small block. So if there one close to fitting the Fbody I'd go for it. It has a large aftermarket support for all parts need.
I am still gathering data on that differential (and others) – just not enough time in the day (or something to that effect).
Just obtained differential details from Nitro's, ’05-10 Grand Cherokees, ’98-03 Durango’s and ’97-04 Dakota’s, to add to my list just the other day.
I almost got details from an ’04-09 Durango – but discovered there lug studs are huge (9/16”-18) and my axle width measuring tools wouldn’t fit (holes are only drilled for ½” studs).
I love Dana 60’s – but they weigh as much as a car does (less engine/transmission) – and is horrendous as far as un-sprung weight (important for road racing). I would think an all-aluminum D44 would be fun to play with.
I’ve “heard” the aluminum housings are not as strong as the iron/steel D44’s are – but no first-hand experience on them (yet). I think having strength in the gears and axle shafts would be more important than the housing - which I would also think housing "weakness" wouldn't be critical and "should" spring back (if it deflects any to begin with).
Note: Just now reading that article from Mopar Action (not finished yet).
BudW
The PDF file below is work still in progress – so it might be missing data or have errors.