My cars developed a really bad noise from the gearbox, it sounds like its running with no oil. I checked the oil, and took the plate off (expecting loads of metal swarf in the bottom) but nothing...
It sounds like a dry bearing or something, the diff looks fine. I thought it may be a CV joint at first but they seem ok aswell.
It started on friday after going through some floods, but has got worse
Its not a howling noise, but more like a grinding/scraping noise