Right, seems i've blown a hole in the diff casing on my volvo 360. Now, it looks like someone has liquid metalled the hole over before and i've got somewhere to be on wednesday so it needs fixing asap. I'm on the case for a new gearbox and diff combo but just incase that doesnt come off, what could i do? The diff works fine and isnt damaged so maybe i could liquid metal it over again? Or if its alloy i could get someone to weld a plate over the hole? What do you think? What have you done before?