Thanks for the information and opinions.
The amount of leverage a pinion gear can exert on an axle is relative to the distance the pinion gear contacts the ring gear from the center of the axle.
A 10.5" ring gear will encounter less stress, turning an axle with any given amount of torque, and all things being the same, will encounter lower breakage experience. That's simple physics.
That's why a Dana 60 (with a 9.75" ring gear) is stronger than an 8.75".
You don't think a Toyota rear end would be "cool" in your MoPar?
I'll tell you what's not "cool." Sitting on the starting line with an immobile car, because the rear carrier bearing caps gave up the ghost on your 8.75" differential at the hit! Happens all the time; I'm just waiting for it to happen to me. Install a Dana?
A Dana has a ring gear that is 11.4-percent larger than an 8.75."
A Toyota 10.5" is 7.7-percent larger than a Dana...
There MAY be aftermarket support for this rear end; I don't know...
IF in fact, it's stronger than a Dana (and, given its size, it should be), I'd rather have the stronger of the two in my car, regardless of who made them, to minimize the chance that I'll have to walk home from the races.
I'll look around some more to see what I can find out. I dunno...
That's why I was asking.
I'm not interested in the "cool" factor; that won't win any races... I'd just like to be able to drive my car home feom the strip after a hard day of racing.
I thought maybe this bigger ring gear might be good for that.