Speedo gearbox end part number

Hi

After 18 months, many hours work and help from the guys on this site, i have a newly mot'd series 3 , pic attached.

only 1 problem the damn speedo, after doing some tests have concluded the problem is the speedo drive in the gearbox, does anyone know the part number or where i can get a replacement part.

cheers

depending on whats worn

have a look at part numbers

540004
FRC1536
268791
211502
232565

LR series have a good website with lots of pics

Superb thanks Steve2286w, i will check today to see what i need and order the correct part