Whilst heading on holiday last week my car made a nice pop followed by a cloud off smoke whilst doing about 80mph down a dual carriageway.

Apparently a hole has been blown through the Torsen Differential houisng part of the gearbox by a piece of the diff. According to Audi etc this means and entirely new/re-con gearbox (code EFC) costing atleast 2500+vat!

My questions is can you have these Torsen Diffs repaired? If not has anyone got a ideas where I might be able to get a 2nd hand gearbox? I've tried most of the internet sites with no joy yet.

Thanks in advance.