I have a 1979 300 SD, The dealer quoted $800.00 for a small set of 4 pads in a small box to do the front!
It was not that expensive 5 to 10 yrs ago, why now?
I just walked away, came back and asked him to put it in writing. "What do they make the brake pads out of now, Gold?" I will also replace the front rotors & bearings as well. (just below, in this form, you do not offer my 1979 model, so I put 1981, your closest model.) Thank You! I am brand new to this site. I'll be glad to offer any other assistance to members as needed, if I know the answer. Pete