I have the chance of some rear Sierra calipers but they have no sliding/mount bit, just the actual caliper. Could a slidey/mount bit off front calipers be used? I can't quite picture it in me head, its a bit full at the moment.

[Edited on 30/11/06 by mistergrumpy]

Sadly they are totally different!

Bugger! Ah well. Cheers for that though.