[rechinca]

Little more gleaning of info from older threads. Finally able locate a couple places that list two different MC for the 71-72 C10's and they are separated by manual brakes and power brakes. One is LMC the other is Truck and Car Shop. Seeing how it's Saturday I did not have a chance to call and get some info on the specs. I will try and see if they want to be helpful parts folks on Monday to give some actual specs on the bore, port orientation/size and deep or shallow pocket.

Since my booster is a rebuilt unit, I can't say for certain what it should have had, but it has the long pushrod for a deep pocket in the piston. Since NAPA doesn't differentiate on power vs manual brakes, who knows what potluck rebuilt booster I have and if the rod is even correct (although from the patina on it, it at least is an older pushrod. Couldn't find my paperwork on what they sold me for sure. But she looks right so why doubt it? Kidding. As Paul Harvey said, Stand by for news!