It came to me in a dream last night... The rear calipers for a D are from a Jaguar... and although the Jag has 5-bolt wheels, their caliper mounts onto the axle with 4 bolts. It has that kind of "top hat" design, too. That's very similar to the D. If you look at http://www.welshent.com/brakes.htm , you'll see the shape is familiar. Will it fit? Also, on a hunch, I checked out 1976 Mercury Capris (front brake interchange). They use 4-bolt wheels. I wonder if their front discs would fit? Just something to investigate if any of you out there in D-land need rotors soon. Let us know what you find out! -Dave Stragand VIN #05927 http://www.projectvixen.com