master cylinder pushrod interchange

Yea, me too. I was serching till my eyes hurt!

My 4 wheel power drum set up is being sllllooowwwy upgraded to the now 11 inch rear drums and stock for '74 disc's. The M/C that is there now, I want to swap out for a late 70's (Doba) M/C. Which is 2 bolt and the current 4 bolt will be taken out. I'll need an adapter plate, but what about the pushrod?

Allready have the correct proportioning valve. (If truly needed.)

Hummmmmmm, best figure this out before I start tearing things apart! LOL