


In answer to your question, the easiest thing to do is replace it with another SE/NB8C diff housing. I am not aware of a stronger diff housing specifically for the SE/NB8 differentials. However, I am sure one of our other forum sponsors (MX5 Plus, MX5 Mania, etc) should be able to source you a used item.
There is the V8 Roadster Getrag rear driveline conversion but I am not sure if they can be used with a standard SE Gearbox.
Sorry, no links as both FM and V8 Roadster diff webpages are not loading up on my laptop at the moment...

Les @ MX5 Shop
P.S. I still can't believe that you broke a SE diff housing on that section. Surely that must be unique situation for that to have happened?!?
