Master Cylinder issue???

gtgto said

Here is a link to the one I ordered from Summit. Its not even shipping till 5/7 for some reason
1970 PLYMOUTH DUSTER Right Stuff Detailing Master Cylinders DBMC10

Right Stuff DBMC10

Click to expand...

Was it recommended by Summit or did you pick it out?
MC piston diameter looks rather large for disc brake application?
I could be wrong