Yes don't worry.
I suspect dseddn/Alan's issue was the oil causing the bronze bits to break down which in turn caused heating which in turn caused other things to break - fed on itself.
Use the right oil and with normal use you will not have an issue. Most 101s, Stage 1s, RRs are still running around with their original transfer cases - change the oil regularly and keep it fresh and the odds are there will be no issues.
Garry

