First of all, I think that the straight-on shot of the Budd brake setup may have faked viewers out. Here's a different shot that clearly shows that the rotor and hub are separate parts: http://www.bos-engel.com/Imperial/rotor.jpg Secondly, I guess I should have said merely that the Budd system is a problem area for many owners. When you have problems with it, especially rotors, the repair job will be expensive. I don't think that Chrysler released a brake system that was defective or worked poorly, especially on their flagship models. The problem seems to be that the systems don't age well, especially on cars that have sat for a long time or are driven infrequently. In short, 8 pistons provide 4X as many leak/moisture entry points as 2 pistons. Also working against the system is the fact that the rotors are quite thin even when new and they shouldn't be "cut." Mercedes Benz uses/used a nearly identical caliper on their high end models, and MBZ cars have stunning braking ability. I recently worked on a beautiful 1988 560SL and it had the 4-piston, fixed-caliper brake system. On that car, one of the pistons in the right caliper had seized and created a real mess. The brake rotor was quite discolored and caliper parts got hot enough to melt the piston dust boots. Repair parts, while easily available from a MBZ dealer were probably more expensive than Budd parts! So I'm not a Budd hater! I still believe, however, that it is the Achilles heel of the 69s. Pete in PA Rebuilding the Kelsey Hayes 4-piston disc brake setup for his 72 Duster Twister