Good shop around Surrey for a diff service?

  1. My model of MX-5 is: MK2.5 2004
  2. I’m based near: Surrey
  3. I’m looking for technical help or recommendations on: Pulling the Torsen diff from my 02 Phoenix to go on my less rusty 04 in place of the open diff, but it’s occurred to me that it’s probably a good idea to service the diff, what’s a good place to get it serviced and fitted around Surrey/Guildford?

Sparkes Engineering in Bisley. Details on page 81 of the latest copy of STHT (October).

Thanks Claire! I just got it through in the post a day or so ago!