No, it is not a bespoke part. It is the Dana Hydratrak LSD, fitted to lots of cars, including TVRs.
When mine was replaced, it was ordered direct from Australia where they are manufactured, but I would be surprised if Dreadnought couldn't help you in some way.
could try some tvr websites, although not sure on the cost of the units
Peter Essling
What about Pilsden Autos(Dorset) for a 2nd hand one? they are breaking one with around 30k on it don't know how much they would want for one, they are advertising on Ebay (front wiring loom ZT V8).
thats a good idea Paul. Very helpful on the phone when i brought the gear surround from them
Peter Essling
Thank you Gents for all your advice, it's appreciated. £520 + VAT is a bit painful! :I will have to see. I am still sorting out things with bespoke at the moment. I will keep you posted.
It's a V8 thing - 031