new master cylinder or rebuild?
K so I have several choices avail;
MK 551 pro grade rebuild kit.
http://www.rockauto.com/catalog/moreinfo.php?pk=310331
Cheapest option and the mc is designed to work with manual disc.Has correct 1" bore but made from heavy cast iron.
88 Dak manual disc mc 15/16" bore
m body alum mc 1 1/32" bore
Those need the adaptor,which is fine I guess.