Thanks Ted and Larry,
Checking parts shop for the calipers now.
Interesting thought on our fathers, Ted... Makes you think.
I figured the master cylinder would need service, but you never know... I also should have known better than to ask about the replacement of just one side. I guess I should stop being so miserly, but I just spent out a small fortune on the wife's car and my Mustang's front end. My 240 deserves the best, and I'll make sure she gets it.
I'll be making the repairs this next week if I can get the parts by then. I'll let you all know if I run into any problems with the master cylinder rebuild.
Wish me luck, and thanks for the help.
76 240D (W115) - 550K miles
78 300D (W123) - 200K+ miles