Ive had my R+D dog box in my sierra for about 2 months now and already ive broken both diffs. Ive only did about 10 5500rpm launches in the wet with road tyres when the front diff housing split(see links to photos)
Replaced that, then after another 10 or so similar launches, the rear diff let go.

My plan for now is just to put the strenghtening plate in the front and get a quaife lsd unit for the rear. Will the crown wheel and pinion be the next to go?
What other options do i have?

http://www.flickr.com/photos/23686751@N07/3340296613/
http://www.flickr.com/photos/23686751@N07/3341124492/
http://www.flickr.com/photos/23686751@N07/3341124218/