Re: Nine inch diff dramas
If you can locate a hemishere you will be back in action. You should have a spare siezed pin/spider gear from the bits and pieces. Diff shops can sell them new anyway, Motive gear still makes them I believe.
In regards to the hemisphere try to source a single wheeler or an LSD. The single wheeler (4 spider gear) only needs a lip machined off in a lathe to be able to be used. When you compare them side by side it is obvious.