An update ..........
I now have the 16v calipers for the G60 carrier install.
However, the connections to the calipers are different between the 8V and 16V - damn !
The existing 8V hose ends (goodridge) screw INTO the calipers themselves with NO prongs inside.
The 16V hose ends (some no name braided hoses that came with the secondhand calipers) screw over a connection which has a small holed probe jutting out of the connection. This then goes to the caliper proper via a small length of looped metal pipe (to stop strain/vibration from the caliper I guess). The connection from the looped pipe then screws into the caliper and has another of these holed pronbes at it's end which goes into the caliper.
This suggests that the 16V calipers require different goodridge braded hoses for a 16V rather than an 8V - yet the goodridge site seems to list the same hoses for both 8V and 16V.
Am I missing something here ?