[Albertan]

Heavy
Actually, I CAN get a tax credit for doing research and development on my V! My company owns it and any money and time I spend developing anything with the possibility of future sales is fair game. I usually use this to try to develop new ways to do things in my molding business, but it would apply here as well.
As I see it, there are a number of different solutions. Number one in my mind is the offset front bushing location. Every time the car accelerates the whole housing will twist. Designing a second mount for the front would probably help a lot. Second, a girdle around the housing to prevent or minimize distortion due to gears pushing the case out of dimension. Both these fixes, designed correctly will probably make the dif live longer even with wheel hop. These are what I plan to work on since they should be minimal cost for max benefit.
So I will see if I can develop anything that actually will work and I can get an SR&ED tax credit while doing it. So a bit of win win!

 

[Albertan]

All this talk of "trailing arms" better refer to the rear two mounts on the differential itself because the trailing arms that go to the shock locations by the wheels see no twisting moment at all. They do see a whole lot of compressive forces when the wheels start to move foreward and the car wants to stand still though. In a solid axle coil spring design the upper and lower trailing arms do have to stop the axle from twisting, but in our cars it is solely the job of the three rubber mounted attachment points on the differential.
The more I look at it the more I wonder. The rest of the rear seems to be really heavy duty and then there is the weak looking aluminum differential, what weren't they thinking.