I'm rebuilding the Exmo after 17 years under a tarp. I'm re fitting the brake servo and master cylinder, the ones from the donor Sierra. I'd forgotten how close to the exhaust manifold it all gets. I stripped the master cylinder to find a sorry state of gunge and corrosion. The bore is so-so but the rubbers and springs are shot. I could buy a repair kit, however I suspect it would not last long. Getting a whole new master cylinder (Lucas/Girling Part No. 74066315) is prooving elusive. So I am going to try fitting a Ford KA master cylinder without a servo. Searching our archives here there are plenty of mentions of this having been done, however no specific information with part numbers and instructions. Does anyone here have such information that they are willing/able to share ?...... I have bought a cheap used "KA master cylinder" on eBay, (waiting for delivery), and will soon start trying to make it fit.