Gearbox/performance car specialist?

[Babw]

I need to find a reputable garage in South Wales that can rebuild a gearbox with a new LSD, final drive and set preload etc.

Any recommendations?

[Belle427]

May be worth trying these guys, did a gearbox rebuild for me recently and are well regarded.
Gearbox repairs are best left to specialists.
They are very easy to find as they are 10 mins off the M4.
http://www.manualgearboxrepairs.co.uk/