I checked out the ad and the part/[pic you posted is what I had on the car and the local performance parts store sold me the Raybestos MC36439 style. I wonder if they sold me the wrong Master Cylinder?
I looked at those links and the biggest detail isn’t given, and that the bore diameter of the master cylinder. It should be 15/16 or if you like a bit firmer pedal feel 1 inch. I’ve never gone bigger than 1 inch.
The other thing is you need a different pushrod. Other than the new MC and pushrod it’s pretty much a bolt on deal.
