Hello everyone! Happy Fall.
The brakes went to about 5% effectiveness while driving at 50MPH on my 74 280 (of course it was rush hour!). Pedal went all the way to the floor. Luckily I didnt hit anyone!

I replaced the front pads about 2 months ago and had flawless operation until this misshap. I believe I have traced it to a siezed front caliper (passenger side). So my plan is to rebuild it and replace front hoses (i think Mark Di or Diesel Dog recommended I do this and of course I didnt-silly me).

My experience with brakes says I should replace rear hoses, do rear pads and maybe attack the master cylinder also; a complete refreshening. Note: Have not found any leaking and Master cyl is still full but that caliper makes a Groaning ship like sound ala "Das Boot".

What frightens me is the price of a brake booster. How do you tell when that is gone and will the renewed pressure of rebuilt brakes blow it out if it isnt allready?

Ahh geez...that one owner 91 300E with 82K and all records for 7G's sure is looking good right now.

Thanks,

Mark - 1974 280 Blue - Blue rasberry slurrpy color....4 barrels and 4 speeds=thirsty!