Ridin' the Pork Chop
AO Silver Member
Join Date: Oct 2001
Location: United Kingdom
County: West Sussex
Yes, the rear calipers have to be rotated clockwise while pushed in. You will knacker the internal ratchet for the handbrake if you don't, and that means a new caliper! (voice of experience speaking!).
You should be able to do it with the Sykes-Picavant brake windback tool available from Halfords, they're about £20.00.
Also, make sure that the sliding part of the caliper does just that, they have a tendancy to seize. I'd pull it apart even if it is moving, clean it up and put new grease in it, just to be on the safe side.
While you're down that end, check that the little boots on the handbrake cable are okay too, becasue these can freeze up in cold weather if moisture gets into the cable.
Hope that helps,